Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 384: | \[{13^{384}-1\over12}\] | 27 × 3 × 5 × 7 × 17 × 61 × 97 × 157 × 193 × 257 × 1009 × 1153 × 1601 × 2657 × 10433 × 14281 × 28393 × 88993 × 441281 × 3230593 × 283763713 × 407865361 × 815702161 × 127028743393<12> × 659481276875569<15> × 403791981344275297<18> × 36713826768408543617<20> × 68675120456139881482562689<26> × 11352931040252580224415980746369<32> × 14977427998321433931503086910333672833<38> × 3215877717636198473712500018174097551256193<43> × 38436965620586987689488589105716734784140096285687477673605804756844311140239538694793578853328259207261168821797181289210948123271234463330561<143> |