Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 470: | \[{15^{470}-1\over14}\] | 24 × 11 × 31 × 283 × 659 × 1531 × 2351 × 4931 × 5641 × 6299 × 15511 × 183959 × 23537131 × 648262883114101<15> × 2947920462206937499<19> × 51265078307770378966246021<26> × 435469979208869649367100641<27> × 400546952025958526341824468624883789<36> × 2656097495066872027407960633754824283<37> × [329341644614416778391522880807018381503741206207367894452767421438078813903915112031772522214927045404780002067207411778907733271112692800274045408357841<153>] × [642276095656731986835304098457195270782497280076684668721667401992699331995500060300394868149434424593926986289306491466606287151107949278654262707842016631807368877768591843691266244200133975528821<198>] |