Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 65: | \[{7^{65}-1\over6}\] | 131 × 2801 × 157951 × 787021 × 16148168401<11> × 4446437759531<13> × 434502978835771<15> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 65: | \[{7^{65}-1\over6}\] | 131 × 2801 × 157951 × 787021 × 16148168401<11> × 4446437759531<13> × 434502978835771<15> |