Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 55: | \[{13^{55}-1\over12}\] | 23 × 419 × 859 × 2861 × 18041 × 30941 × 13545148572117361<17> × 8603427927040724342317061<25> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 55: | \[{13^{55}-1\over12}\] | 23 × 419 × 859 × 2861 × 18041 × 30941 × 13545148572117361<17> × 8603427927040724342317061<25> |