Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 356: | \[{6^{356}-1\over5}\] | 7 × 37 × 179 × 8011 × 2064441331 × 21777198152670085407545228412531133078179560879352228259<56> × 1437176850540020021056024701236917910178773041847685459251313907949<67> × 92874768913720582900858911299754687243149941868501755733246139460861<68> × 943676408565322984279844306380513862900179721637307961334427437498481<69> |