Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 79: | \[{7^{79}-1\over6}\] | 913242407367610843676812931<27> × 1056836588644853738704557482552056406147<40> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 79: | \[{7^{79}-1\over6}\] | 913242407367610843676812931<27> × 1056836588644853738704557482552056406147<40> |