Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 345: | \[{18^{345}-1\over17}\] | 73 × 31 × 41 × 47 × 599 × 601 × 2711 × 4831 × 156631 × 558721 × 7468009 × 20801237997245359<17> × 82393874808821351987834521<26> × 3335831283765997129468848570484932171598514072932729<52> × 3336277510305777441247543696294496479366253454467592530568949945380908802489179473831<85> × 572574572518560966350037758918884980981497736021075264900078869644449824909343731768892013559450060417442407938745465643253963232055788096360044904730329521772155728935029588829639160566484015372926419460923158100321<216> |