Saith
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| Enghraifft o: | rhif cysefin, Mersenne prime, positive integer, odrhif, centered hexagonal number, centered octahedral number, heptagonal number, hexagonal pyramidal number, Woodall number, double Mersenne number, Cantor number, Mersenne number, factorial prime, harshad number, primorial prime, Euclid number, double Mersenne prime  |
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| Rhagflaenwyd gan | chwech |
| Olynwyd gan | wyth |
| Dynodwyr | |
| Freebase | /M/01dkgg |
 Ffeiliau perthnasol ar Gomin Wicimedia | |
Rhif rhwng chwech ac wyth yw saith (7). Mae'n rhif cysefin.
