Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
65: | \[{22^{65}-1\over21}\] | 79 × 521 × 2003 × 245411 × 330331 × 85107437663<11> × 37987538607331<14> × 3198633375097421<16> × 1246501206961265681019957871<28> |