Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 83: | \[{23^{83}-1\over22}\] | 338309 × 364419547069027138439<21> × 27736074503263071062950778805992164759<38> × 1402902528489494184197616878227352708965872870517<49> |