List of Chen primes: 21001 - 22000
Chen primes: A prime number p is called a Chen prime if p + 2 is either a prime or semiprime.
Chen primes between 661679 and 698251 have values between 661679 and 698251.
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List#
661679, 661697, 661721, 661769, 661877, 661889, 661931, 661949, 661987, 662021, 662059, 662111, 662141, 662177, 662339, 662351, 662477, 662531, 662537, 662567, 662591, 662617, 662657, 662689, 662719, 662771, 662789, 662797, 662819, 662867, 662897, 662917, 662939, 662951, 662999, 663053, 663071, 663149, 663161, 663191, 663209, 663239, 663281, 663301, 663359, 663371, 663407, 663437, 663517, 663539, 663557, 663569, 663581, 663587, 663589, 663599, 663601, 663659, 663737, 663797, 663821, 663827, 663857, 663881, 663907, 663959, 663977, 663979, 664019, 664091, 664109, 664121, 664177, 664199, 664211, 664253, 664271, 664289, 664319, 664331, 664357, 664379, 664381, 664421, 664427, 664511, 664529, 664589, 664619, 664661, 664667, 664679, 664691, 664757, 664799, 664847, 664949, 664967, 665011, 665029, 665039, 665051, 665111, 665141, 665177, 665239, 665279, 665381, 665387, 665419, 665447, 665479, 665501, 665507, 665591, 665603, 665617, 665747, 665783, 665801, 665843, 665857, 665921, 665981, 666019, 666031, 666067, 666089, 666119, 666203, 666269, 666329, 666353, 666431, 666437, 666467, 666527, 666557, 666647, 666671, 666683, 666707, 666749, 666821, 666857, 666959, 666989, 667013, 667019, 667081, 667127, 667211, 667241, 667309, 667361, 667421, 667463, 667477, 667531, 667547, 667559, 667577, 667631, 667649, 667657, 667691, 667697, 667727, 667781, 667801, 667817, 667829, 667837, 667859, 667949, 667991, 668051, 668069, 668111, 668153, 668201, 668243, 668417, 668471, 668531, 668543, 668567, 668579, 668609, 668687, 668737, 668747, 668791, 668821, 668867, 668879, 668903, 668929, 669029, 669077, 669089, 669167, 669181, 669287, 669311, 669329, 669371, 669377, 669401, 669419, 669437, 669451, 669479, 669649, 669659, 669677, 669701, 669707, 669791, 669847, 669857, 669869, 669887, 669937, 669947, 669971, 669989, 670001, 670037, 670049, 670097, 670099, 670139, 670193, 670211, 670321, 670379, 670409, 670457, 670487, 670511, 670517, 670541, 670619, 670627, 670639, 670727, 670729, 670763, 670781, 670853, 670897, 670919, 670991, 671063, 671081, 671093, 671131, 671159, 671189, 671201, 671219, 671257, 671269, 671339, 671369, 671417, 671467, 671471, 671501, 671519, 671609, 671633, 671651, 671681, 671717, 671729, 671777, 671887, 671921, 671939, 671969, 671981, 671999, 672041, 672079, 672097, 672107, 672167, 672169, 672227, 672251, 672311, 672317, 672377, 672443, 672557, 672587, 672629, 672641, 672779, 672781, 672799, 672827, 672869, 672871, 672949, 672953, 672983, 673019, 673091, 673109, 673157, 673193, 673199, 673201, 673241, 673247, 673271, 673327, 673381, 673391, 673397, 673399, 673403, 673427, 673451, 673457, 673529, 673579, 673619, 673637, 673667, 673781, 673787, 673811, 673943, 673961, 673991, 674057, 674117, 674131, 674159, 674183, 674227, 674249, 674321, 674357, 674363, 674501, 674537, 674603, 674669, 674699, 674717, 674731, 674759, 674761, 674771, 674789, 674831, 674851, 674867, 674879, 674929, 674957, 674977, 675067, 675083, 675109, 675131, 675161, 675197, 675221, 675251, 675341, 675347, 675407, 675419, 675449, 675481, 675539, 675551, 675593, 675611, 675617, 675797, 675839, 675859, 675863, 675881, 675929, 675977, 676007, 676031, 676043, 676057, 676061, 676103, 676111, 676147, 676211, 676217, 676241, 676259, 676279, 676337, 676349, 676391, 676409, 676421, 676601, 676661, 676679, 676721, 676727, 676733, 676747, 676763, 676829, 676859, 676909, 676919, 676931, 676937, 676943, 676979, 677011, 677021, 677057, 677081, 677111, 677147, 677231, 677309, 677321, 677333, 677357, 677387, 677447, 677459, 677461, 677471, 677531, 677561, 677627, 677639, 677657, 677681, 677687, 677791, 677827, 677891, 677927, 677947, 678037, 678077, 678101, 678191, 678299, 678329, 678341, 678367, 678401, 678407, 678421, 678437, 678479, 678593, 678611, 678647, 678649, 678653, 678719, 678721, 678731, 678749, 678761, 678779, 678809, 678941, 678959, 678989, 679037, 679067, 679169, 679277, 679279, 679297, 679319, 679361, 679433, 679451, 679463, 679517, 679531, 679639, 679709, 679751, 679781, 679883, 679891, 679907, 679909, 679961, 679969, 680039, 680081, 680129, 680159, 680177, 680189, 680213, 680237, 680291, 680297, 680347, 680387, 680399, 680411, 680441, 680489, 680507, 680567, 680611, 680651, 680707, 680759, 680809, 680861, 680879, 680971, 680987, 681011, 681047, 681089, 681113, 681167, 681221, 681251, 681257, 681311, 681337, 681407, 681449, 681521, 681557, 681689, 681719, 681839, 681841, 681899, 681977, 681983, 682001, 682037, 682079, 682151, 682219, 682247, 682289, 682291, 682307, 682411, 682417, 682427, 682439, 682489, 682511, 682597, 682607, 682637, 682679, 682697, 682699, 682733, 682739, 682751, 682777, 682789, 682811, 682951, 683003, 683087, 683119, 683159, 683201, 683231, 683357, 683453, 683477, 683479, 683489, 683567, 683591, 683651, 683693, 683699, 683777, 683807, 683819, 683831, 683843, 683861, 683909, 683939, 683957, 684037, 684053, 684119, 684191, 684221, 684239, 684287, 684289, 684293, 684329, 684337, 684347, 684379, 684407, 684419, 684443, 684527, 684557, 684569, 684581, 684599, 684713, 684751, 684767, 684769, 684791, 684809, 684841, 684977, 684989, 685001, 685019, 685057, 685169, 685247, 685271, 685301, 685337, 685367, 685369, 685381, 685427, 685511, 685541, 685637, 685649, 685679, 685733, 685759, 685849, 685859, 685907, 685939, 686003, 686009, 686027, 686029, 686039, 686087, 686117, 686141, 686177, 686197, 686209, 686267, 686269, 686317, 686363, 686417, 686513, 686669, 686687, 686729, 686731, 686737, 686837, 686843, 686879, 686891, 686897, 686947, 686963, 686969, 686993, 687007, 687017, 687101, 687107, 687109, 687131, 687161, 687233, 687277, 687299, 687311, 687317, 687341, 687359, 687383, 687389, 687397, 687413, 687431, 687457, 687521, 687541, 687551, 687593, 687637, 687647, 687683, 687737, 687749, 687809, 687847, 687917, 687961, 687977, 688027, 688031, 688067, 688097, 688187, 688217, 688277, 688297, 688379, 688397, 688451, 688631, 688637, 688657, 688661, 688747, 688799, 688979, 689021, 689041, 689077, 689081, 689107, 689131, 689201, 689219, 689237, 689257, 689261, 689267, 689279, 689309, 689321, 689341, 689369, 689411, 689441, 689459, 689509, 689597, 689807, 689831, 689867, 689879, 689891, 689951, 689957, 689963, 689987, 690059, 690119, 690139, 690187, 690269, 690281, 690293, 690341, 690367, 690377, 690407, 690427, 690449, 690467, 690491, 690509, 690533, 690607, 690661, 690689, 690719, 690817, 690839, 690841, 690869, 690871, 690887, 690953, 691001, 691037, 691079, 691109, 691121, 691147, 691151, 691181, 691193, 691289, 691349, 691399, 691409, 691451, 691499, 691553, 691589, 691631, 691651, 691661, 691681, 691687, 691697, 691709, 691721, 691727, 691739, 691841, 691877, 691919, 691931, 691979, 691991, 692051, 692099, 692117, 692147, 692249, 692281, 692297, 692299, 692309, 692327, 692387, 692399, 692441, 692537, 692567, 692581, 692621, 692651, 692771, 692789, 692821, 692927, 692929, 692933, 692957, 692969, 693089, 693149, 693157, 693167, 693179, 693317, 693359, 693401, 693437, 693527, 693569, 693659, 693689, 693701, 693731, 693809, 693827, 693829, 693851, 693877, 693967, 693989, 694019, 694039, 694061, 694079, 694091, 694259, 694271, 694277, 694313, 694327, 694361, 694381, 694387, 694409, 694427, 694457, 694481, 694511, 694541, 694559, 694597, 694619, 694649, 694651, 694721, 694781, 694829, 694831, 694871, 694919, 694997, 695021, 695087, 695117, 695141, 695171, 695207, 695309, 695327, 695369, 695411, 695441, 695447, 695467, 695477, 695567, 695603, 695663, 695677, 695687, 695701, 695777, 695801, 695839, 695843, 695867, 695879, 695881, 695899, 695939, 695999, 696019, 696077, 696107, 696119, 696149, 696257, 696271, 696281, 696349, 696359, 696457, 696497, 696503, 696569, 696611, 696659, 696719, 696737, 696809, 696833, 696851, 696887, 696907, 696929, 696989, 697019, 697069, 697087, 697127, 697141, 697181, 697217, 697259, 697271, 697351, 697379, 697397, 697481, 697511, 697553, 697601, 697637, 697691, 697727, 697733, 697757, 697787, 697819, 697897, 697967, 697979, 698021, 698039, 698051, 698249, 698251
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