Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 460: | \[{18^{460}-1\over17}\] | 53 × 11 × 13 × 19 × 41 × 47 × 461 × 599 × 1381 × 2711 × 9041 × 15101 × 24841 × 145501 × 415381 × 7468009 × 25753561 × 20801237997245359<17> × 5184266309231761249<19> × 222068509026238060237<21> × 78074624675264190720167261<26> × 82393874808821351987834521<26> × 1930773408050211089575377161<28> × 3913037558632733048069409307<28> × 7516342403453194393474042331<28> × 852225206949910852975030976655459189356098014820921<51> × 2689642671034442783074612022224663985789147234308604310218003135065974079469191755641<85> × 3336277510305777441247543696294496479366253454467592530568949945380908802489179473831<85> × 877796474421411008702724244771792507888076382358121619454659243868374721064026870808920439590406724785587541<108> |