Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 99: | \[{6^{99}-1\over5}\] | 19 × 23 × 43 × 67 × 2467 × 16633 × 3154757 × 18380539 × 18414001 × 226407819331<12> × 45686117391553<14> × 38167293140100433<17> |