Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 316: | \[{5^{316}-1\over4}\] | 22 × 3 × 13 × 317 × 41081 × 72997 × 18251687 × 7897663181<10> × 511465533067<12> × 10390269663517<14> × 205367807127911<15> × 58523123221688392679<20> × 344120456368919234899<21> × 37399095525167136010188229<26> × 1065749744001796733896764771825305424274265052101529365248751779411263689062240801237<85> |