Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 219: | \[{23^{219}-1\over22}\] | 7 × 79 × 877 × 632911 × 3467983074289<13> × 62875867943209<14> × 553027079891990497<18> × 52758171521205474158839779336871134951896640145619046102732332285095531824880639<80> × 384865465473918525674966807141267636609217784074136477536269640011799951609123529888383740173110734991535628745668779481446252845365525906199622978298743551769021<162> |