Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 385: | \[{8^{385}-1\over7}\] | 7 × 23 × 31 × 71 × 89 × 127 × 151 × 337 × 463 × 881 × 2311 × 3191 × 29191 × 55441 × 106681 × 122921 × 152041 × 201961 × 599479 × 6250631311<10> × 494224324441<12> × 1971764055031<13> × 581283643249112959<18> × 2048568835297380486760231<25> × 4982397651178256151338302204762057<34> × 31055341681190444478126719755965134571151473925765532041<56> × 260078892331205274324088366772886790199621606534384599607578416912079166019131912393708208277038936454393545946152508951<120> |