Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 177: | \[{22^{177}-1\over21}\] | 3 × 132 × 1369981 × 6060378131191<13> × 2288129166742313<16> × 332076648067531277428380418301349195312522623622779384422542859<63> × 60485895005447103478365732533848194519147392977267475661436779390583400322769571303116840117785597708671078869800993594580583521786676809<137> |