Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 278: | \[{22^{278}-1\over21}\] | 23 × 557 × 1669 × 11677 × 332429221627<12> × 5252686334173367<16> × 68691706714737089<17> × 1126280094272228994813849401253927133709<40> × 6302483726728053424526375999494425302302580344712857<52> × 19800824483965303123889157770484704314739820794892624378061366159477687<71> × 176639953954754045656310185879420832553327146435239949664418890627232756168418616294372868404767719732290866869777040282541682803547928272254862124261421391<156> |