Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 42: | \[{13^{42}-1\over12}\] | 2 × 3 × 72 × 29 × 43 × 61 × 157 × 337 × 463 × 547 × 22079 × 2714377 × 5229043 × 54165939703<11> |
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 42: | \[{13^{42}-1\over12}\] | 2 × 3 × 72 × 29 × 43 × 61 × 157 × 337 × 463 × 547 × 22079 × 2714377 × 5229043 × 54165939703<11> |