Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 71: | \[{13^{71}-1\over12}\] | 6959 × 12923 × 201499 × 56573583882629131201397586942443243853379490390398336588076200421<65> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 71: | \[{13^{71}-1\over12}\] | 6959 × 12923 × 201499 × 56573583882629131201397586942443243853379490390398336588076200421<65> |