Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 255: | \[{25^{255}-1\over24}\] | 3 × 7 × 11 × 31 × 61 × 71 × 103 × 181 × 409 × 521 × 1021 × 1531 × 1741 × 3061 × 7621 × 8467 × 90271 × 236641 × 317731 × 528667 × 41540861 × 75752681 × 247515241 × 466344409 × 504156421 × 60119016343<11> × 206249584501<12> × 654652168021<12> × 782302186051<12> × 38385602257801<14> × 85077293022121<14> × 263420722813531<15> × 1445377105917001<16> × 34563155350221618511<20> × 68795069664507129341<20> × 8198241112969626815581<22> × 18654796603647183092401<23> × 131872274978634754198635541<27> × 754364998275305205241055404472944499950501<42> |