Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 424: | \[{13^{424}-1\over12}\] | 23 × 5 × 7 × 17 × 107 × 1061 × 3499 × 14281 × 92009 × 194723 × 18464777 × 7504072417<10> × 84863647489<11> × 202326783229<12> × 189541180943969<15> × 2034766409871541<16> × 8403659652641423<16> × 37379721025854083<17> × 39349502420618381<17> × 274690322498001718403<21> × 55315179851718646236650521<26> × 296102253960054265850194729<27> × 4000741506474775723055096281<28> × 1331344930977110852021126518627097<34> × 442773440141111075167142197133681487289<39> × 37207276507369122007080121269775389223691801849847443592738294824209<68> × 789034359604902596505941984987386363273130300870888426428087873489215943768158576701473<87> |