100,000
| ||||
---|---|---|---|---|
Cardinal | one hundred thousand | |||
Ordinal | 100000th (one hundred thousandth) | |||
Factorization | 25× 55 | |||
Greek numeral | ||||
Roman numeral | C | |||
Binary | 110000110101000002 | |||
Ternary | 120020112013 | |||
Senary | 20505446 | |||
Octal | 3032408 | |||
Duodecimal | 49A5412 | |||
Hexadecimal | 186A016 | |||
Egyptian hieroglyph | 𓆐 |
100,000(one hundred thousand) is thenatural numberfollowing99,999and preceding 100,001. Inscientific notation,it is written as 105.
Terms for 100,000
[edit]InBangladesh,India,PakistanandSouth Asia,one hundred thousand is called alakh,and is written as1,00,000.TheThai,Lao,KhmerandVietnameselanguages also have separate words for this number:แสน,ແສນ,សែន(allsaen), andứcrespectively. TheMalagasyword ishetsy.[1]
Inthe Netherlands,a 'ton' is a colloquialism for a denomination of 100.000 monetary units. In theguildersperiod a ton would denote 100.000 guilders. With the introduction of the euro, a ton would come to mean 100.000 euros. The usage is mostly limited to the financial sphere and the buying and selling of houses. It is not used in official settings because of the ambiguity with commonly usedmetric tonne.While usage is common in the Netherlands, it sees almost no use inBelgium.[citation needed]
InCyrillic numerals,it is known as the legion (легион):or
.
Values of 100,000
[edit]Inastronomy,100,000 metres,100 kilometres,or100 km(62 miles) is thealtitudeat which theFédération Aéronautique Internationale(FAI) definesspaceflightto begin.
Inpaleoclimatology,the100,000-year problemis a mismatch between the temperature record and the modeledincoming solar radiation.
In theIrish language,céad mílefáilte(pronounced[ˌceːd̪ˠˈmʲiːlʲəˈfˠaːl̠ʲtʲə]) is a popular greeting meaning "a hundred thousand welcomes".
Selected 6-digit numbers (100,001–999,999)
[edit]100,001 to 199,999
[edit]- 100,003= smallest 6-digit prime number[2]
- 100,128= smallesttriangular numberwith 6 digits and the 447th triangular number
- 100,151=twin primewith 100,153
- 100,153= twin prime with 100,151
- 100,255=Friedman number[3]
- 100,489= 3172,the smallest 6-digit square
- 101,101= smallestpalindromicCarmichael number
- 101,723= smallestprime numberwhose square is apandigital numbercontaining each digit from 0 to 9
- 102,564= The smallestparasitic number
- 103,049=Schröder–Hipparchus number[4]
- 103,680=highly totient number[5]
- 103,769= the number of combinatorial types of 5-dimensionalparallelohedra
- 103,823= 473,the smallest 6-digit cube and nice Friedman number (−1 + 0 + 3×8×2)3
- 104,480=number of non-isomorphic set-systemsof weight 14.
- 104,723= the 9,999th prime number
- 104,729= the 10,000th prime number
- 104,869= the smallestprime numbercontaining every non-prime digit
- 104,976= 184,3-smooth number
- 105,071= number of triangle-free graphs on 11 vertices[6]
- 105,558= number of partitions of 46[7]
- 105,664=harmonic divisor number[8]
- 108,968= number of signed trees with 11 nodes[9]
- 109,376=automorphic number[10]
- 110,880=highly composite number[11]
- 111,111=repunit
- 111,777= smallest natural number requiring 17 syllables in American English, 19 in British English
- 113,634=Motzkin numberforn= 14[12]
- 114,243/80,782 ≈√2
- 114,689=prime factorofF12
- 115,975=Bell number[13]
- 116,281= 3412,square number,centered decagonal number,18-gonal number
- 117,067= firstvampire prime
- 117,649= 76
- 117,800= harmonic divisor number[8]
- 120,032= number of primitive polynomials of degree 22 over GF(2)[14]
- 120,284=Keith number[15]
- 120,960= highly totient number[5]
- 121,393=Fibonacci number[16]
- 123,717= smallest digitally balanced number in base 7[17]
- 123,867= number of trees with 18 unlabeled nodes[18]
- 124,754= number of partitions of 47[7]
- 125,673= logarithmic number[19]
- 127,777= smallest natural number requiring 18 syllables in American English, 20 in British English
- 127,912=Wedderburn–Etherington number[20]
- 128,981= Starts the firstprime gapsequence of 2, 4, 6, 8, 10, 12, 14
- 129,106= Keith number[15]
- 130,321= 194
- 131,071=Mersenne prime[21]
- 131,072= 217and largest determinant of a (real) {0,1}-matrix of order 15.[22]
- 131,361=Leyland number[23]
- 134,340=Pluto's minor planet designation
- 135,135=double factorialof 13
- 135,137=Markov number[24]
- 142,129= 3772,square number,dodecagonal number
- 142,857=Kaprekar number,smallestcyclic numberindecimal.
- 144,000= number with religious significance
- 147,273= number of partitions of 48[7]
- 147,640= Keith number[15]
- 148,149= Kaprekar number[25]
- 152,381=unique primeinbase 20
- 156,146= Keith number[15]
- 155,921= smallest prime number being the only prime in an interval from 100nto 100n+ 99
- 160,000= 204
- 160,176= number of reduced trees with 26 nodes[26]
- 161,051= 115
- 161,280= highly totient number[5]
- 166,320= highly composite number[11]
- 167,400= harmonic divisor number[8]
- 167,894= number of ways to partition {1,2,3,4,5,6,7,8} and then partition each cell (block) into subcells.[27]
- 173,525= number of partitions of 49[7]
- 173,600= harmonic divisor number[8]
- 174,680= Keith number[15]
- 174,763=Wagstaff prime[28]
- 176,906= number of 24-bead necklaces (turning over is allowed) where complements are equivalent[29]
- 177,147= 311
- 177,777= smallest natural number requiring 19 syllables in American English, 21 in British English
- 178,478= Leyland number[23]
- 181,440= highly totient number[5]
- 181,819= Kaprekar number[25]
- 182,362= number of 23-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed[30]
- 183,186= Keith number[15]
- 183,231= number ofpartially ordered setwith 9 unlabeled elements[31]
- 187,110= Kaprekar number[25]
- 189,819= number of letters in the longest English word, taking 3 hours to pronounce[32]
- 194,481= 214
- 195,025=Pell number,[33]Markov number[24]
- 196,418= Fibonacci number,[16]Markov number[24]
- 196,560= thekissing numberin 24 dimensions
- 196,883= the dimension of the smallest nontrivialirreduciblerepresentationof theMonster group
- 196,884= the coefficient ofqin theFourier seriesexpansion of thej-invariant.The adjacency of 196883 and 196884 was important in suggestingmonstrous moonshine.
- 199,999= prime number.
200,000 to 299,999
[edit]- 202,717= k such that the sum of the squares of the first k primes is divisible by k.[34]
- 206,098–Large Schröder number
- 206,265= rounded number ofarc secondsin aradian(see alsoparsec), since180 × 60 × 60/π= 206,264.806...
- 207,360= highly totient number[5]
- 208,012= theCatalan numberC12[35]
- 208,335= the largest number to be bothtriangularandsquare pyramidal[36]
- 208,495= Kaprekar number[25]
- 212,159= smallest unprimeable number ending in 1, 3, 7 or 9[37][38]
- 221,760= highly composite number[11]
- 222,222=repdigit
- 224,737= the 20,000th prime number
- 227,475=Riordan number
- 234,256= 224
- 237,510= harmonic divisor number[8]
- 238,591= number of free 13-ominoes
- 241,920= highly totient number[5]
- 242,060= harmonic divisor number[8]
- 248,832= 125,100,00012,AKA a gross-great-gross (10012great-grosses); the smallest fifth power that can be represented as the sum of only 6 fifth powers: 125= 45+ 55+ 65+ 75+ 95+ 115
- 253,293= number ofprime knotswith 15 crossings
- 255,168= number of ways to playtic tac toe[39]
- 262,144= 218;exponential factorialof 4;[40]asuperperfect number[41]
- 262,468= Leyland number[23]
- 268,705= Leyland number[23]
- 274,177= prime factor of theFermat numberF6
- 275,807/195,025 ≈√2
- 276,480= number of primitive polynomials of degree 24 over GF(2)[14]
- 277,200= highly composite number[11]
- 279,841= 234
- 279,936= 67
- 280,859= aprime numberwhosesquare78881777881 is tridigital
- 291,400= number of non-equivalent ways of expressing 100,000,000 as the sum of two prime numbers[42]
- 293,547= Wedderburn–Etherington number[20]
- 294,001= smallestweakly primenumber in base 10[43]
- 294,685= Markov number[24]
- 298,320= Keith number[15]
300,000 to 399,999
[edit]- 310,572= Motzkin number[12]
- 314,159= pi-prime
- 316,749= number of reduced trees with 27 nodes[26]
- 317,811= Fibonacci number[16]
- 317,955= number of trees with 19 unlabeled nodes[44]
- 318,682= Kaprekar number[25]
- 325,878= Fine number[45]
- 326,981=alternating factorial[46]
- 329,967= Kaprekar number[25]
- 331,776= 244
- 332,640= highly composite number;[11]harmonic divisor number[8]
- 333,333= repdigit
- 333,667=sexy primeandunique prime[47]
- 333,673= sexy prime with 333,679
- 333,679= sexy prime with 333,673
- 337,500= 22× 33× 55
- 337,594= number of 25-bead necklaces (turning over is allowed) where complements are equivalent[29]
- 349,716= number of 24-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed[30]
- 351,351= only known oddabundant numberthat is not the sum of some of its proper, nontrivial (i.e. >1) divisors (sequenceA122036in theOEIS).
- 351,352= Kaprekar number[25]
- 355,419= Keith number[15]
- 356,643= Kaprekar number[25]
- 356,960= number of primitive polynomials of degree 23 over GF(2)[14]
- 360,360= harmonic divisor number;[8]smallest number divisible by the numbers from 1 to 15 (there is no smaller number divisible by the numbers from 1 to 14 since any number divisible by 3 and 5 must be divisible by 15)
- 362,880= 9!, highly totient number[5]
- 369,119= prime number which divides the sum of all primes less than or equal to it[48]
- 369,293= smallest prime with the property that inserting a digit anywhere in the number will always yield a composite[49]
- 370,261= first prime followed by aprime gapof over 100
- 371,293= 135,palindromic in base 12 (15AA5112)
- 389,305=self-descriptive numberin base 7
- 390,313= Kaprekar number[25]
- 390,625= 58
- 397,585= Leyland number[23]
400,000 to 499,999
[edit]- 409,113= sum of the first ninefactorials
- 422,481= smallest number whose fourth power is the sum of three smaller fourth powers
- 423,393= Leyland number[23]
- 426,389= Markov number[24]
- 426,569= cyclic number inbase 12
- 437,760to440,319=any of these numbers will cause theApple II+andApple IIecomputers to crash to a monitor prompt when entered at the BASIC prompt, due to a short-cut in the Applesoft code programming of the overflow test when evaluating 16-bit numbers.[50]Entering440000at the prompt has been used to hack games that are protected against entering commands at the prompt after the game is loaded.
- 444,444= repdigit
- 456,976= 264
- 461,539= Kaprekar number[25]
- 466,830= Kaprekar number[25]
- 470,832= Pell number[33]
- 483,840= highly totient number[5]
- 492,638= number of signed trees with 12 nodes[51]
- 498,960= highly composite number[11]
- 499,393= Markov number[24]
- 499,500= Kaprekar number[25]
500,000 to 599,999
[edit]- 500,500= Kaprekar number,[25]sum of first 1,000 integers
- 509,203=Riesel number[52]
- 510,510= the product of the first seven prime numbers, thus the seventhprimorial.[53]It is also the product of four consecutiveFibonacci numbers—13, 21, 34, 55, the largest such sequence of any length to be also a primorial. And it is a doubletriangular number,the sum of all even numbers from 0 to 1428.
- 514,229=Fibonacci prime,[54]
- 518,859=Schröder–Hipparchus number[4]
- 524,287= Mersenne prime[21]
- 524,288= 219
- 524,649= Leyland number[23]
- 525,600= minutes in a non-leap year
- 527,040= minutes in a leap year
- 531,441= 312
- 533,169= Leyland number[23]
- 533,170= Kaprekar number[25]
- 537,824= 145
- 539,400= harmonic divisor number[8]
- 548,834= equal to the sum of the sixth powers of its digits
- 554,400= highly composite number[11]
- 555,555= repdigit
- 586,081= number of prime numbers having seven digits.[55]
- 599,999= prime number.
600,000 to 699,999
[edit]- 604,800= number of seconds in a week
- 614,656= 284
- 625,992=Riordan number
- 629,933= number of reduced trees with 28 nodes[26]
- 645,120= double factorial of 14
- 646,018= Markov number[24]
- 649,532= number of 26-bead necklaces (turning over is allowed) where complements are equivalent[29]
- 664,579= the number of primes under 10,000,000
- 665,280= highly composite number[11]
- 665,857/470,832 ≈√2
- 666,666= repdigit
- 671,092= number of 25-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed[30]
- 676,157= Wedderburn–Etherington number[20]
- 678,570= Bell number[13]
- 694,280= Keith number[15]
- 695,520= harmonic divisor number[8]
700,000 to 799,999
[edit]- 700,001= prime number.
- 707,281= 294
- 720,720=superior highly composite number;[56]colossally abundant number;[57]smallest number divisible by the numbers from 1 to 16
- 725,760= highly totient number[5]
- 726,180= harmonic divisor number[8]
- 729,000= 903
- 739,397= largest prime that is both right- and left-truncatable.
- 742,900= Catalan number[35]
- 753,480= harmonic divisor number[8]
- 759,375= 155
- 765,623=emirp,Friedman prime56× 72− 6 ÷ 3
- 777,777= repdigit, smallest natural number requiring 20 syllables in American English, 22 in British English, largest number in English not containing the letter 'i' in its name
- 783,700= initial number of third centuryxx00 toxx99 (after400and 1,400) containing seventeenprime numbers[58][a]{783,701, 783,703, 783,707, 783,719, 783,721, 783,733, 783,737, 783,743, 783,749, 783,763, 783,767, 783,779, 783,781, 783,787, 783,791, 783,793, 783,799}
- 799,999= prime number.
800,000 to 899,999
[edit]- 810,000= 304
- 823,065= number of trees with 20 unlabeled nodes[60]
- 823,543= 77
- 825,265= smallestCarmichael numberwith 5 prime factors
- 832,040= Fibonacci number[16]
- 853,467= Motzkin number[12]
- 857,375= 953
- 873,612= 11+ 22+ 33+ 44+ 55+ 66+ 77
- 888,888= repdigit
- 890,625=automorphic number[10]
900,000 to 999,999
[edit]- 900,001= prime number
- 901,971= number of free 14-ominoes
- 909,091=unique primein base 10
- 923,521= 314
- 925,765=Markov number[24]
- 925,993= Keith number[15]
- 950,976=harmonic divisor number[8]
- 956,619:956619^2=915119911161, and only the digits 1, 5, 6 and 9 are used in both this number and itssquare.
- 967,680=highly totient number[5]
- 970,299= 993,the largest 6-digit cube
- 998,001= 9992,the largest 6-digit square. The reciprocal of this number, in its expanded form, lists all three-digit numbers in order except 998.[61]
- 998,991= largesttriangular numberwith 6 digits and the 1413th triangular number
- 999,983= largest 6-digit prime number
- 999,999= repdigit.Rational numberswith denominators 7 and 13 have 6-digitrepetendswhen expressed indecimalform, because 999999 is the smallest number one less than a power of 10 that is divisible by 7 and by 13, and it is the largest number in English not containing the letter 'l' in its name.
Prime numbers
[edit]There are9,592primes less than 105,where 99,991 is the largest prime number smaller than 100,000.
Increments of 105from 100,000 through aone millionhave the following prime counts:
- 8,392primes between 100,000 and 200,000.[b]This is a difference of1,200primes from the previous range.
- 104,729 is the 10,000th prime in this range.
- 199,999 is prime.
- 8,013primes between 200,000 and 300,000.[c]A difference of379primes from the previous range.
- 224,737 is the 20,000th prime.
- 7,863primes between 300,000 and 400,000.[d]A difference of150primes from the previous range.
- 350,377 is the 30,000th prime.
- 7,678primes between 400,000 and 500,000.[e]A difference of185primes from the previous range. Here, the difference increases by a count of35.
- 479,909 is the 40,000th prime.
- 7,560primes between 500,000 and 600,000.[f]A difference of118primes from the previous range.
- 7,445primes between 600,000 and 700,000.[g]A difference of115primes from the previous range.
- 611,953 is the 50,000th prime.
- 7,408primes between 700,000 and 800,000.[h]A difference of37primes from the previous range.
- 700,001 and 799,999 are both prime.
- 746,773 is the 60,000th prime.
- 7,323primes between 800,000 and 900,000.[i]A difference of85primes from the previous range. Here, the difference increases by a count of48.
- 882,377 is the 70,000th prime.
- 7,224primes between 900,000 and1,000,000.[j]A difference of99primes from the previous range. The difference increases again, by a count of14.
- 900,001 is prime.
In total, there are68,906prime numbers between 100,000 and 1,000,000.[62]
Notes
[edit]- ^There are no centuries containing more than seventeen primes between 200 and 122,853,771,370,899 inclusive.[59]
- ^Smallestp> 100,000 is 100,003 (9,593rd); largestp< 200,000 is 199,999 (17,984th).
- ^Smallestp> 200,000 is 200,003 (17,985th); largestp< 300,000 is 299,993 (25,997th).
- ^Smallestp> 300,000 is 300,007 (25,998th); largestp< 400,000 is 399,989 (33,860th).
- ^Smallestp> 400,000 is 400,009 (33,861st); largestp< 500,000 is 499,979 (41,538th).
- ^Smallestp> 500,000 is 500,009 (41,539th); largestp< 600,000 is 599,999 (49,098th).
- ^Smallestp> 600,000 is 600,011 (49,099th); largestp< 700,000 is 699,967 (56,543rd).
- ^Smallestp> 700,000 is 700,001 (56,544th); largestp< 800,000 is 799,999 (63,951st).
- ^Smallestp> 800,000 is 800,011 (63,952nd); largestp< 900,000 is 899,981 (71,274th).
- ^Smallestp> 900,000 is 900,001 (71,275th); largestp<1,000,000is 999,983 (78,498th).
References
[edit]- ^"Malagasy Dictionary and Madagascar Encyclopedia: hetsy".malagasyword.org.26 October 2017.Retrieved2019-12-31.
- ^Sloane, N. J. A.(ed.)."Sequence A003617 (Smallest n-digit prime)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^"Problem of the Month (August 2000)".Archivedfrom the original on 2012-12-18.Retrieved2013-01-13.
- ^abSloane, N. J. A.(ed.)."Sequence A001003 (Schroeder's second problem (generalized parentheses); also called super-Catalan numbers or little Schroeder numbers.)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdefghijSloane, N. J. A.(ed.)."Sequence A097942 (Highly totient numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A006785 (Number of triangle-free graphs on n vertices)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdSloane, N. J. A.(ed.)."Sequence A000041 (a(n) is the number of partitions of n (the partition numbers))".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdefghijklmSloane, N. J. A.(ed.)."Sequence A001599 (Harmonic or Ore numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000060 (Number of signed trees with n nodes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abSloane, N. J. A.(ed.)."Sequence A003226 (Automorphic numbers: m^2 ends with m)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdefghiSloane, N. J. A.(ed.)."Sequence A002182 (Highly composite numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcSloane, N. J. A.(ed.)."Sequence A001006 (Motzkin numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abSloane, N. J. A.(ed.)."Sequence A000110 (Bell or exponential numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcSloane, N. J. A.(ed.)."Sequence A011260 (Number of primitive polynomials of degree n over GF(2))".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdefghijSloane, N. J. A.(ed.)."Sequence A007629 (Repfigit (REPetitive FIbonacci-like diGIT) numbers (or Keith numbers))".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdSloane, N. J. A.(ed.)."Sequence A000045 (Fibonacci numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A049363 (a(1) = 1; for n > 1, smallest digitally balanced number in base n)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000055 (Number of trees with n unlabeled nodes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A002104 (Logarithmic numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcSloane, N. J. A.(ed.)."Sequence A001190 (Wedderburn-Etherington numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abSloane, N. J. A.(ed.)."Sequence A000668 (Mersenne primes (primes of the form 2^n - 1))".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A003432 (Hadamard maximal determinant problem)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.Retrieved2024-03-30.
- ^abcdefghSloane, N. J. A.(ed.)."Sequence A076980 (Leyland numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdefghSloane, N. J. A.(ed.)."Sequence A002559 (Markoff (or Markov) numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcdefghijklmnSloane, N. J. A.(ed.)."Sequence A006886 (Kaprekar numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcSloane, N. J. A.(ed.)."Sequence A000014 (Number of series-reduced trees with n nodes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000258 (Expansion of e.g.f. exp(exp(exp(x)-1)-1))".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000979 (Wagstaff primes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcSloane, N. J. A.(ed.)."Sequence A000011 (Number of n-bead necklaces (turning over is allowed) where complements are equivalent)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abcSloane, N. J. A.(ed.)."Sequence A000013 (Definition (1): Number of n-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000112 (Number of partially ordered sets (posets) with n unlabeled elements)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^"The longest word in English? Here are the top 15 biggest ones".Berlitz.Retrieved2024-03-01.
- ^abSloane, N. J. A.(ed.)."Sequence A000129 (Pell numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A111441 (Numbers k such that the sum of the squares of the first k primes is divisible by k)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^abSloane, N. J. A.(ed.)."Sequence A000108 (Catalan numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000330 (Square pyramidal numbers: a(n) = 0^2 + 1^2 + 2^2 +... + n^2 = n*(n+1)*(2*n+1)/6)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Collins, Julia (2019).Numbers in Minutes.United Kingdom: Quercus. p. 140.ISBN978-1635061772.
- ^Sloane, N. J. A.(ed.)."Sequence A143641 (Odd prime-proof numbers not ending in 5)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^"How many Tic-Tac-Toe (Noughts and crosses) games?".
- ^Sloane, N. J. A.(ed.)."Sequence A049384 (a(0)=1, a(n+1) = (n+1)^a(n))".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A019279 (Superperfect numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A065577 (Number of Goldbach partitions of 10^n)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Weißstein, Eric W. (25 December 2020)."Weakly Prime".Wolfram MathWorld.
- ^Sloane, N. J. A.(ed.)."Sequence A000055 (Number of trees with n unlabeled nodes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000957 (Fine's sequence (or Fine numbers): number of relations of valence greater than or equal to 1 on an n-set; also number of ordered rooted trees with n edges having root of even degree)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A005165 (Alternating factorials)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A040017 (Unique period primes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A007506 (Primes p with property that p divides the sum of all primes <= p)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A125001 (Non-insertable primes: primes with property that no matter where you insert (or prepend or append) a digit you get a composite number (except for prepending a zero).)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^"Applesoft Disassembly -- S.d912".Archivedfrom the original on 2016-04-15.Retrieved2016-04-04.Disassembled ROM. See comments at $DA1E.
- ^Sloane, N. J. A.(ed.)."Sequence A000060 (Number of signed trees with n nodes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A101036 (Riesel numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A002110 (Primorial numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A005478 (Prime Fibonacci numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.Sloane, N. J. A.(ed.)."Sequence A178444 (Markov numbers that are prime)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A006879 (Number of primes with n digits.)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A002201 (Superior highly composite numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A004490 (Colossally abundant numbers)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A186509 (Centuries containing 17 primes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A186311 (Least century 100k to 100k+99 with exactlynprimes) ".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^Sloane, N. J. A.(ed.)."Sequence A000055 (Number of trees with n unlabeled nodes)".TheOn-Line Encyclopedia of Integer Sequences.OEIS Foundation.
- ^"Dividing one by 998001 produces list of three digit numbers".23 January 2012.
- ^Caldwell, Chris K."The Nth Prime Page".PrimePages.Retrieved2022-12-03.From the differences of theprime indexesof the smallest and largest prime numbers in ranges of increments of 105,plus 1 (for each range).