Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 78: | \[{6^{78}-1\over5}\] | 7 × 31 × 43 × 53 × 79 × 937 × 3433 × 9049 × 37571 × 760891 × 868999 × 3143401 × 8857759 × 1262014275211<13> |