Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 86: | \[{23^{86}-1\over22}\] | 23 × 3 × 173 × 92107 × 65542806503<11> × 22780364741027450075819291264641969166345360069<47> × 102219917850387811990824636930475340357519336809223<51> |