Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 515: | \[{6^{515}-1\over5}\] | 5 × 311 × 1031 × 2473 × 5563 × 160681 × 14273741 × 51000194644495138540724380270139087381<38> × 269690619752198805055012330035413837972909471<45> × 528470247299322903313372089437425702274777330888424461<54> × 12767653355301160780822191431160569156710177181791578590824899905497<68> × 192555859444848551945228066144956971844623031356567184639767718571161<69> × 12381501996361687638519969487483377267345617915746525594871464933003896913675143922771847367927059986631<104> |