Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 438: | \[{23^{438}-1\over22}\] | 23 × 32 × 7 × 132 × 79 × 439 × 877 × 632911 × 82897487 × 3467983074289<13> × 62875867943209<14> × 511250086041433<15> × 149485352663731807<18> × 553027079891990497<18> × 33634861877050507067251<23> × 195436881937205119535750400397<30> × 1096140622317155888584837638388660879<37> × 194797441524571244246770944129545684369<39> × 1196442111213963512745231956993874622113577<43> × 52758171521205474158839779336871134951896640145619046102732332285095531824880639<80> × 290938758504766921090855432724314906637441421530870473644611614066319783722570405783<84> × 384865465473918525674966807141267636609217784074136477536269640011799951609123529888383740173110734991535628745668779481446252845365525906199622978298743551769021<162> |