Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 425: | \[{18^{425}-1\over17}\] | 17 × 41 × 1361 × 2551 × 2711 × 3911 × 94351 × 602401 × 3462391 × 5124991 × 10275311 × 13426601 × 23718627631<11> × 7563707819165039903<19> × 21162386787273369601<20> × 8923131267608947348958760704450309227970561<43> × [150583835220425136481475898680803865832916678284341770729832540624593972139912807512972000688581768855152712489378577607288164822770066546127325169449057340329091753515903213455682223953834087964709902514881124414801442321401998664008790652899566994335902580525646300482077579670200526259541941646483222154491023492158257107549043964795728903598161688928719697382982202881763612303536001<387>] |