Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
289: | \[{7^{289}-1\over6}\] | 14009 × 1828793 × 2767631689 × 801172436655296029591646500403317187<36> × 26773640876541335875821092444484138995809<41> × 1875291995490040404401675309538171406234747910994681038992246946582711346382033182283489088526228267654812999694017241406214239550856303256606071779<148> |