Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 243: | \[{7^{243}-1\over6}\] | 35 × 19 × 37 × 109 × 811 × 1063 × 1459 × 1621 × 2377 × 3727 × 169129 × 1382671 × 2583253 × 3368791 × 70722308812401674174993533367023<32> × 73870787476849933393474604683663<32> × 1064869214842704386552507016701224268198650513934923811755043312309821510641342162227744473<91> |