Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 309: | \[{8^{309}-1\over7}\] | 73 × 46351 × 2033839 × 2550183799 × 22229194879<11> × 312842300671<12> × 1953272766780718501831<22> × 3976656429941438590393<22> × 1561132657829329085404515097<28> × 16549888083084083065824727273<29> × 7521737478732572053581227840017636545169<40> × 879740744632732726735603688644723834968599141530812429576685148083081214374014571985038046112889<96> |