Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 340: | \[{18^{340}-1\over17}\] | 53 × 11 × 13 × 17 × 19 × 41 × 137 × 443 × 1021 × 1361 × 1429 × 2711 × 3911 × 6257 × 9041 × 15101 × 41141 × 145501 × 3462391 × 5124991 × 10275311 × 20786377 × 35919131 × 1292838509 × 23718627631<11> × 1895634885375961<16> × 61187167524277573<17> × 7563707819165039903<19> × 85541066136957490580054601901<29> × 8923131267608947348958760704450309227970561<43> × 3534923148120878482281371961640869308727731899619701<52> × 3735629385849417475746789509492609979688513422783442961830108058900501141<73> × 6391390774997931784580912565133739701149850312606557794030895233993179721<73> |