Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 240: | \[{23^{240}-1\over22}\] | 26 × 32 × 52 × 7 × 132 × 17 × 31 × 37 × 41 × 53 × 61 × 79 × 151 × 211 × 241 × 937 × 941 × 1801 × 3697 × 5081 × 7549 × 57601 × 79561 × 139921 × 272341 × 292561 × 623009 × 5670961 × 7249841 × 12682129 × 83575993 × 229533481 × 336449041 × 541119751 × 3414132961 × 74912328481<11> × 76384053703681<14> × 147190628299441<15> × 483563163219889<15> × 1206964869343609001<19> × 48208012663723213321<20> × 146239626404410677041<21> × 143856739091202297428641<24> × 611431385019046555697761<24> × 81769833316936487882480161<26> |