Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
217: | \[{6^{217}-1\over5}\] | 5333 × 55987 × 385227416351<12> × 49744740983476472807<20> × 26316013765873042806112463084693<32> × 1265855393578666785134496493194757776649681<43> × 7580956159804488623890305012371373838101141217153351297<55> |