Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 125: | \[{13^{125}-1\over12}\] | 251 × 701 × 9851 × 30941 × 350101751 × 801560380001<12> × 2752135920929651<16> × 35199053368085838842979540209438412998059030296049878821936573050859714700358074512994001<89> |