Base 25 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 261: | \[{25^{261}-1\over24}\] | 32 × 7 × 19 × 31 × 59 × 349 × 523 × 829 × 5167 × 5569 × 6961 × 35671 × 79867 × 4144681 × 5096867 × 6717619 × 81131329 × 999092863 × 185737685563<12> × 6090817323763<13> × 22125996444329<14> × 210390487070809<15> × 22500358133965991972941<23> × 420610743056505018221215111<27> × 28870194250662203210437116612769<32> × 11566136229005308986654971792863317115138766959390489944515828805834193517341<77> × 83860023803592831778413203310797051672264892775678957210527952911327386300030209549<83> |