Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
65: | \[{23^{65}-1\over22}\] | 911 × 31721 × 292561 × 4922971 × 47691619 × 480393499 × 1550738312754197195984990763641083397417745874324021<52> |