Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 239: | \[{13^{239}-1\over12}\] | 3063456113 × 3530790423461159<16> × 4644033252013063<16> × 1726103091542323787942567786032869000240272001962747<52> × 164147510759104607596247749324019219010022186961077610599337142488413068604748342510484560745190723834300611675445675460864092166788703560853878619629323834469354802017855729<174> |