Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 385: | \[{18^{385}-1\over17}\] | 23 × 41 × 71 × 199 × 449 × 463 × 2711 × 16127 × 51217 × 80207 × 4274201 × 50790191 × 812593321 × 125500908706801<15> × 4164889456901862302881<22> × 24079647987394646183428194161<29> × 4226158024555207354137717207823767090063569445942721682870403141495192673<73> × [24007742790974303064327634993184559402561344993149186329596341851346778721098453039089044469497670309122013141967851072282044370739978265447286438169748887873137827751679627716426931339291898691591681708130338328664586139431619449210043507951505455671259911108437449506080489749672888019137431<293>] |