Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 285: | \[{7^{285}-1\over6}\] | 3 × 192 × 31 × 419 × 2801 × 19609 × 36671 × 159871 × 523261 × 879399649 × 1966385431 × 4534166740403<13> × 6957533874046531<16> × 93586760776923620671<20> × 80183934664292567561851<23> × 83588499889013461558350575326824370345112529401<47> × 14647063040739096932514535006129272666792334298320134861724147176214623121<74> |