Base 16 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 427: | \[{16^{427}-1\over15}\] | 29 × 43 × 113 × 127 × 733 × 1709 × 3456749 × 5124001 × 33282089 × 57461778571<11> × 117955793453<12> × 368140581013<12> × 667055378149<12> × 768614336404564651<18> × 2305843009213693951<19> × 1340235308854811506044205739394787<34> × 58173423339751902869230813472914416283229<41> × 7008531058606134366351354208075730417605687061<46> × 37039384484592776011496295016981622297628544025851992941<56> × 755329623338365767690003976874558819319370593128035091773<57> × 45388918821243922076531264049185505868800192485507712713181818563<65> × 35560193412972319062061768261639727517478499914167548496031688280584977077562191671059223282469465959<101> |