Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 117: | \[{31^{117}-1\over30}\] | 32 × 792 × 331 × 3637 × 13807 × 39703 × 42407 × 81343 × 2426789 × 2534689 × 7908811 × 4618898267815261<16> × 175500339130677572941801<24> × 250630033376957433234617073114910871767<39> × 81382530347065881922481062710103556578538876467<47> |