Base 13 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 233: | \[{13^{233}-1\over12}\] | 467 × 647741 × 712981 × 2533177 × 5397070369482515615693244912570059906418605613583702876815453675513496895598894616071053254251424071512250523091926942788263645373822653808279702495225030471164424165974403679263674731952807561175250157067898351480705906732322182984610939<238> |