Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
137: | \[{18^{137}-1\over17}\] | 823 × 119191 × 126041 × 24670687 × 19200881188957829725805247071484410657<38> × 94238146395875881364199055700174891405273852238052247676145364388837161822190334877466008863132807010586933370153<113> |