Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 387: | \[{5^{387}-1\over4}\] | 19 × 31 × 829 × 27091 × 42571 × 237619 × 18471511 × 1644512641 × 172827552198815888791<21> × 43955934961951833386625799<26> × 51349797354047205216257689<26> × 591570397114510975382037276803611<33> × 2656120768584457773885517433083338243991<40> × 318330817227895965870700138000837743143342446362870016166654233977116500855329574559821039<90> |