Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 231: | \[{23^{231}-1\over22}\] | 72 × 11 × 29 × 43 × 67 × 79 × 27919 × 170689 × 2880109 × 5336717 × 23130823 × 408030421 × 3937230404603<13> × 37942113104611<14> × 182688705194696220829<21> × 26463867183247157673754064782288107237804201852702279113008741<62> × 9272585722780118007445974849821891979237790023605958014809931523345748885471217005576171829233296881396448640335611441386526617663196308904026076521869324229<157> |