Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 442: | \[{8^{442}-1\over7}\] | 32 × 79 × 103 × 307 × 443 × 1327 × 2143 × 2731 × 2857 × 6529 × 8191 × 11119 × 43691 × 47737 × 121369 × 131071 × 8401537 × 22366891 × 1001115859537<13> × 4714692062809<13> × 61231726987393<14> × 1139440451841756774164983271590070953<37> × 4507513575406446515845401458366741487526913<43> × 50364519526424490252100245502573432106654726491<47> × 1817023253798585112376955621635919346759818823715057<52> × 2365454398418399772605086209214363458552839866247069233<55> × 794848656730261183699896604513541946085000444947963571261039<60> |