Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 418: | \[{15^{418}-1\over14}\] | 24 × 23 × 67 × 229 × 419 × 463 × 2333 × 8537 × 13757 × 178487 × 4272113 × 647835211 × 2112138953 × 23504771357<11> × 370649274902657<15> × 439799488353587<15> × 310696428100789261359841<24> × 2830170168716196662596829227<28> × 3121176299491526194487875027532372846432871969797<49> × 69557414097575320397576034913792876326016668449666012951922003264756030820400219724348522575651184714836094116041986172444281829567566709193<140> × 125921698843743399194210298512088198559323639583833396680305574079338706886075580993734046407108846599194890294087527422907412025284967858694827182425952131617<159> |