Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 152: | \[{23^{152}-1\over22}\] | 25 × 3 × 5 × 53 × 761 × 1901 × 2129 × 15809 × 139921 × 493811 × 3195383 × 63877469 × 111236869 × 1970307281599<13> × 24939218613613<14> × 60848703597029<14> × 40308694338467297<17> × 1072790797270456849349<22> × 173819906099875708900460346229647396819252086600585427114597165536702398064257<78> |