Chwech
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| Enghraifft o'r canlynol | rhif naturiol,perfect number, rhif triongl, automorphic number,rhif cyfansawdd,eilrif, centered pentachoric number, centered pentagonal number, hexagonal number, pentagonal pyramidal number, pronic number, highly touchable number, strictly non-palindromic number, harshad number, semiprime |
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 Ffeiliau perthnasol ar Gomin Wicimedia | |
