Base 11 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 79: | \[{11^{79}-1\over10}\] | 317 × 185277551100523662054683911<27> × 31705898389348622756718888962810730367411163041955447<53> |