Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 474: | \[{7^{474}-1\over6}\] | 23 × 3 × 19 × 43 × 317 × 1423 × 2371 × 2874811 × 4094413 × 7573763065938754357<19> × 913242407367610843676812931<27> × 90359966617569667185245947327<29> × 529637338334729405483135077873<30> × 104875706439110156251225614941159441477<39> × 1056836588644853738704557482552056406147<40> × 1481321264883880246916470592046969388894893484078223714088062665971646663466823055171520991013<94> × 468495386168173905599256243553374540214560578805627340592145689632582924447490087411741924445982603<99> |