Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 279: | \[{22^{279}-1\over21}\] | 32 × 132 × 127 × 297613 × 3592159411 × 220788513292573<15> × 5464220413673727340561927632817<31> × 335118382865604875193283790839361313490894864399683961900756600088302048239870259<81> × 195913915521923874577573542022161050584187930240524980240221671946672019804652453527993797373344122930444600895023185160574704455506581285537289278961438322079347441816073867569039862837860859311712074381236752542818007589425853<228> |