Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 73: | \[{23^{73}-1\over22}\] | 632911 × 3467983074289<13> × 52758171521205474158839779336871134951896640145619046102732332285095531824880639<80> |