Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 308: | \[{8^{308}-1\over7}\] | 32 × 5 × 7 × 13 × 23 × 29 × 43 × 67 × 89 × 113 × 127 × 337 × 397 × 463 × 617 × 683 × 1429 × 2113 × 5419 × 8317 × 14323 × 14449 × 20857 × 78233 × 312709 × 599479 × 4327489 × 869467061 × 3019242689 × 35532364099<11> × 76096559910757<14> × 581283643249112959<18> × 70180796165277040349245703851057<32> × 4982397651178256151338302204762057<34> × 365212445341097287826412838353955921<36> × 3931002956111648245378728475226109181<37> |