Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 308: | \[{18^{308}-1\over17}\] | 52 × 13 × 19 × 23 × 29 × 89 × 199 × 449 × 463 × 617 × 1373 × 16127 × 17837 × 51217 × 80207 × 536801 × 1623833 × 6301307 × 12232837 × 32222107 × 554461601 × 8575134569<10> × 55547468813<11> × 2570735949673<13> × 3837898440029262533<19> × 1678375623559585016168401000058126617<37> × 1714367403669471955986587452320818871697<40> × 51658295030167037018024095606137918836364362557<47> × 459958853280876530765795091653687318180534563911201974971<57> × 4226158024555207354137717207823767090063569445942721682870403141495192673<73> |