Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
80: | \[{6^{80}-1\over5}\] | 5 × 7 × 11 × 17 × 37 × 41 × 101 × 241 × 311 × 1297 × 6781 × 17761 × 98801 × 3696985841 × 68754507401<11> × 121206120881<12> |