Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 118: | \[{7^{118}-1\over6}\] | 23 × 122131 × 459257 × 134927809 × 550413361 × 4261190159 × 1187164242679<13> × 14683403662888806475673<23> × 354639323684545612988577649<27> |