Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 238: | \[{22^{238}-1\over21}\] | 7 × 23 × 29 × 43 × 103 × 137 × 239 × 4999 × 86969 × 16968421 × 74729519 × 128000923 × 325225811 × 1594728827 × 176634767651<12> × 394313197362841<15> × 3135252663810863719229<22> × 5440324422136080822941<22> × 1770415117442388942599065768237247459111334330892541125853091008752321211598040910149<85> × 28666493858498547343017629255175189267400871659920940307509223374633330593569907923991082187753910665189<104> |