Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
185: | \[{8^{185}-1\over7}\] | 31 × 151 × 223 × 27751 × 321679 × 26295457 × 319020217 × 616318177 × 1587855697992791<16> × 7248808599285760001152755641<28> × 30382473782337070766706891765775546594587147791566105506524244468947713551683592001<83> |