Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 627: | \[{15^{627}-1\over14}\] | 67 × 241 × 419 × 463 × 2333 × 8537 × 4272113 × 292582141 × 62475406423<11> × 4969143820807<13> × 370649274902657<15> × 310696428100789261359841<24> × 2830170168716196662596829227<28> × 6969521913939651515520634098282421<34> × 125921698843743399194210298512088198559323639583833396680305574079338706886075580993734046407108846599194890294087527422907412025284967858694827182425952131617<159> × [2646596808847053309785209759617490470486996245907980052162030874493300323591985522051112415960703422779354539620284063350627085594971193591930814802988429579801717700397268089903148505209357208990275167915123358231501753167516977389429319508339538078212336755156815135048912653303274954379867129452495362999619943469713081342345886593838427505624188597135179343848121643644938831109401964788577740922381588556169650781250241<424>] |