Base 31 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 195: | \[{31^{195}-1\over30}\] | 3 × 5 × 11 × 792 × 331 × 911 × 1951 × 2521 × 13807 × 17351 × 39703 × 42407 × 2426789 × 7908811 × 35956831 × 327412201 × 31035996941<11> × 617235858721<12> × 5979236519649901<16> × 175500339130677572941801<24> × 1129363636895809892086303692627113871721<40> × 6897884150241136983696395623521191487263725292759985820983608940598827800118779819131106087373200998607468502771428202022591<124> |