Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 510: | \[{15^{510}-1\over14}\] | 24 × 11 × 31 × 61 × 103 × 137 × 211 × 241 × 443 × 1021 × 1123 × 1531 × 2551 × 4931 × 19231 × 142111 × 1022449 × 3496561 × 8308921 × 39225301 × 490141111 × 1045002649 × 6734509609<10> × 13695697627231<14> × 72235820686921<14> × 101462866544971<15> × 97406069823939953821<20> × 321961707605197886942071<24> × 16515734244780407477383694521<29> × 58170119534379435151775796841<29> × 931378506426564665578619857096187041<36> × 46006622624003587144520612100176336641<38> × 56829536443149107315991803743105617127860919020829030897561<59> × 4799301188150852326241543586305263829814882639167877491414965474028418901<73> × 1737312434693929309175606904667659697444924171560401053012526469801639759361<76> × 29036641623807714312346593385830254724118802386232872201709350252138864635126961<80> |