Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
54: | \[{23^{54}-1\over22}\] | 23 × 34 × 7 × 132 × 19 × 79 × 163 × 271 × 1117 × 4591 × 7792003 × 15785281 × 44765293701223<14> × 1081383636631149044212969<25> |