Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 427: | \[{8^{427}-1\over7}\] | 7 × 127 × 337 × 367 × 55633 × 33282089 × 360770593 × 2305843009213693951<19> × 37201708625305146303973352041<29> × 59852053865074950059030679473230729<35> × 5026638059744684898569644215486557551<37> × 32599161877302789289075576911955243092385921174258348134509220487<65> × 2706665872062984576843279125462015437617845709157069797103846576549111159<73> × 35560193412972319062061768261639727517478499914167548496031688280584977077562191671059223282469465959<101> |