Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 231: | \[{22^{231}-1\over21}\] | 3 × 7 × 132 × 67 × 353 × 16968421 × 61303243 × 121758187 × 1176469537 × 6294765596659<13> × 12271836836138419<17> × 5530862298437303257<19> × 1256727687996256448281<22> × 640701764561255071239913287308005623857357403283753<51> × 868349285220418699859316590919190638269067911418676413837787<60> × 160319811150843150174260675684252078050702216386191058880750367197214911380329922768319867<90> |