Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 448: | \[{18^{448}-1\over17}\] | 52 × 13 × 19 × 29 × 97 × 113 × 449 × 673 × 929 × 1373 × 3697 × 17837 × 80207 × 254209 × 475777 × 1623833 × 2756993 × 5105857 × 5945857 × 32222107 × 113607841 × 3930785153 × 30894471809<11> × 6139221193320769<16> × 469692013656380929<18> × 2263132116914116673<19> × 1212757384379976518273<22> × 361981632928757554946658433<27> × 121934274199167596917341199489<30> × 84895222768060262466596250446741089<35> × 151779582913202727124439346779915201139444602522561<51> × 10287763687327242643784580810477287545659685590559789438040009091431170537409686104558029440166796608325550542950687080507822301683722571488573099005591023281430052409406611504811400719283900173803196186549037817979654298524537964215035494401<242> |