Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 310: | \[{18^{310}-1\over17}\] | 11 × 19 × 41 × 311 × 1427 × 2711 × 8681 × 9041 × 12959 × 19531 × 70619 × 316201 × 466062991 × 1107229481 × 1276827537047<13> × 9365578696924149281<19> × 984938339908206953441<21> × 427906142457974033788659934939<30> × 1216473020300826022855249568544847446401<40> × 4069317457763949581396117495290099929231469953601<49> × 6105344706161177496018405856657758633903569370324868785524181487043204770666481<79> × 22303638513228233176242733938336258106971436723822084073213882019615133607531455601<83> |