Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 252: | \[{5^{252}-1\over4}\] | 22 × 33 × 72 × 13 × 19 × 29 × 31 × 37 × 43 × 127 × 379 × 449 × 601 × 829 × 883 × 2521 × 5167 × 7603 × 19531 × 280729 × 406729 × 519499 × 2161279 × 6597973 × 24132781 × 234750601 × 1692416503 × 4661402165281<13> × 23792163643711<14> × 24587411156281<14> × 147053007410401<15> × 308942475257273345172721<24> |