Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 274: | \[{18^{274}-1\over17}\] | 19 × 823 × 119191 × 126041 × 3414041 × 4077121 × 24670687 × 17085673603<11> × 20870479169<11> × 19200881188957829725805247071484410657<38> × 467370716917593379513782965506783498615559416523<48> × 212878225466335454015190320858645151668847107661613825941800605576388182003738003415444531<90> × 94238146395875881364199055700174891405273852238052247676145364388837161822190334877466008863132807010586933370153<113> |