Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 231: | \[{8^{231}-1\over7}\] | 7 × 23 × 73 × 89 × 127 × 199 × 337 × 463 × 92737 × 153649 × 599479 × 649657 × 289511839 × 33057806959<11> × 2868251407519807<16> × 581283643249112959<18> × 4982397651178256151338302204762057<34> × 3225949575089611556532995773813585269068981944367719218489696982054779837928902323497<85> |