Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 465: | \[{18^{465}-1\over17}\] | 73 × 312 × 41 × 311 × 601 × 2711 × 12959 × 52081 × 316201 × 558721 × 466062991 × 1107229481 × 1276827537047<13> × 9365578696924149281<19> × 2031563183945918294071<22> × 361794341647699905505399<24> × 9408532196941263419626921<25> × 51124582874452705456885351<26> × 4069317457763949581396117495290099929231469953601<49> × 6105344706161177496018405856657758633903569370324868785524181487043204770666481<79> × [66875421995278087137659643338151214550516946498175903801086722890882729052860312531910541982513128347060671725169843497657626909881686964765831714226410063771776667753534042678761882460653254420271672643877969217262007481916556327949400539529616972851379991324333840809856001<275>] |