Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 380: | \[{7^{380}-1\over6}\] | 24 × 53 × 11 × 191 × 281 × 419 × 571 × 2801 × 4021 × 36671 × 351121 × 2617061 × 110943661 × 1966385431 × 2250656021 × 4058036683 × 4534166740403<13> × 1765151799417091<16> × 3050589519086201<16> × 2440590160473742205021<22> × 3266720400198850302821<22> × 45065286561682421139793282921<29> × 2598696228942460402343442913969<31> × 83588499889013461558350575326824370345112529401<47> × 561617084727700360615762897776035028950631667354106141<54> |