Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 57: | \[{13^{57}-1\over12}\] | 3 × 61 × 12865927 × 796956375829<12> × 9468940004449<13> × 14654187650846568795703728901<29> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 57: | \[{13^{57}-1\over12}\] | 3 × 61 × 12865927 × 796956375829<12> × 9468940004449<13> × 14654187650846568795703728901<29> |