Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 405: | \[{19^{405}-1\over18}\] | 34 × 31 × 127 × 151 × 211 × 487 × 523 × 811 × 911 × 1621 × 3727 × 4861 × 29989 × 216919 × 584911 × 907471 × 2460181 × 53260741 × 362063089 × 4791505603771<13> × 1875804566560529436361<22> × 8374006851436085760993151<25> × 2650228472822453446927731244021<31> × 11251993634195741555539192465447903964080975072892235091<56> × 100974986546704014563516474586369230337004982214028298769888689881<66> × [2093765297387789879337802013668533120008286037925674638297435324180190590081469417214242942083775176550300358827170740384894657396144345362354938711847867321877343881181322666023862963402037169240964861415378294910154001582160553651<232>] |