Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 640: | \[{17^{640}-1\over16}\] | 27 × 32 × 52 × 11 × 29 × 41 × 71 × 101 × 241 × 257 × 641 × 769 × 1409 × 3361 × 4801 × 18913 × 21881 × 41761 × 63541 × 88741 × 138497 × 150401 × 165569 × 184417 × 1801601 × 2033441 × 2394241 × 2596481 × 3583912721 × 15015288961<11> × 52548582913<11> × 1186844128302568601<19> × 2741517463686662290741112321<28> × 5075110114734021328723863149761<31> × 9132721800443866620901717373313374783400331656213553340944715176961<67> × 820409876177580333204687948734536192222058078513595174704765137447361<69> × 26322932283994956204030979644111775026565819806572087391187777778930177<71> × 4767374598793613188385844939554375926194896075588103653861610481820486763847719361<82> × [16518824396139573621388142338218393034140432882541612814595754464827579348081120474391566115181272349776734197891774136244818772960383187343056304540131817027977973374135668199851091629323055068628470583876002013052858292965601190321857115966639810875151813463099703957662007609037251345921<290>] |