Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 374: | \[{13^{374}-1\over12}\] | 2 × 7 × 23 × 103 × 419 × 443 × 859 × 10847 × 18041 × 28123679 × 421211143 × 21903343661<11> × 128011456717<12> × 15798461357509<14> × 367934980978027<15> × 617886851384381281<18> × 445536601753454704112226421<27> × 497771541361338465236362720752900878766553875441592054061555949970972567746047025306535683392152824081296828245083348023672996229506235128263<141> × 1253772507557416227185554718637321919458554056492076984268166292125421627866654697595206614037538229843773930642076039582197050168560818397975619<145> |