Base 18 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 403: | \[{18^{403}-1\over17}\] | 79 × 311 × 521 × 12959 × 6895023721<10> × 29759719289<11> × 1276827537047<13> × 630460119117330503<18> × 9365578696924149281<19> × 17182441309013395118797360525063773306068173356920104732067289069228678152397894476278965563380661108552551370125150854253711958010006314628968920987889965251031972539862146822991940298804269642554208120463979087435901362062421294579080965389180967415420424355304418572977227924999216636516218503764720785566278628890158215377682631719788232456425852799809298081416018998041965901485762381515006028001786483997016569085289777<425> |