Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 510: | \[{18^{510}-1\over17}\] | 73 × 11 × 17 × 19 × 31 × 41 × 103 × 137 × 307 × 443 × 601 × 1361 × 2711 × 3911 × 6121 × 8161 × 9041 × 133417 × 519691 × 558721 × 3462391 × 5124991 × 10275311 × 35919131 × 717111001 × 11630180251<11> × 23718627631<11> × 28281862627<11> × 1489856496481<13> × 3464341027951<13> × 1895634885375961<16> × 10413571416962911<17> × 7563707819165039903<19> × 12987756239101305138847<23> × 4124844857754113069438689<25> × 8923131267608947348958760704450309227970561<43> × 6391390774997931784580912565133739701149850312606557794030895233993179721<73> × 194222124196373149048899990715569585764334013126562349943474447981960390158818731928321366135005208531160308426948367095164044241<129> × 120265944853230757111724248791587151908414551405476232258606151599400023302009194659380055921140400152279804136507207491153408199157053536845684161<147> |