Prime Twins
Prime numbers that differ from the next prime by 2
Out of the first 100,000 prime numbers, there are 10,250 prime twins. Here are the first 500:
{3, 5} | {5, 7} | {11, 13} | {17, 19} |
{29, 31} | {41, 43} | {59, 61} | {71, 73} |
{101, 103} | {107, 109} | {137, 139} | {149, 151} |
{179, 181} | {191, 193} | {197, 199} | {227, 229} |
{239, 241} | {269, 271} | {281, 283} | {311, 313} |
{347, 349} | {419, 421} | {431, 433} | {461, 463} |
{521, 523} | {569, 571} | {599, 601} | {617, 619} |
{641, 643} | {659, 661} | {809, 811} | {821, 823} |
{827, 829} | {857, 859} | {881, 883} | {1019, 1021} |
{1031, 1033} | {1049, 1051} | {1061, 1063} | {1091, 1093} |
{1151, 1153} | {1229, 1231} | {1277, 1279} | {1289, 1291} |
{1301, 1303} | {1319, 1321} | {1427, 1429} | {1451, 1453} |
{1481, 1483} | {1487, 1489} | {1607, 1609} | {1619, 1621} |
{1667, 1669} | {1697, 1699} | {1721, 1723} | {1787, 1789} |
{1871, 1873} | {1877, 1879} | {1931, 1933} | {1949, 1951} |
{1997, 1999} | {2027, 2029} | {2081, 2083} | {2087, 2089} |
{2111, 2113} | {2129, 2131} | {2141, 2143} | {2237, 2239} |
{2267, 2269} | {2309, 2311} | {2339, 2341} | {2381, 2383} |
{2549, 2551} | {2591, 2593} | {2657, 2659} | {2687, 2689} |
{2711, 2713} | {2729, 2731} | {2789, 2791} | {2801, 2803} |
{2969, 2971} | {2999, 3001} | {3119, 3121} | {3167, 3169} |
{3251, 3253} | {3257, 3259} | {3299, 3301} | {3329, 3331} |
{3359, 3361} | {3371, 3373} | {3389, 3391} | {3461, 3463} |
{3467, 3469} | {3527, 3529} | {3539, 3541} | {3557, 3559} |
{3581, 3583} | {3671, 3673} | {3767, 3769} | {3821, 3823} |
{3851, 3853} | {3917, 3919} | {3929, 3931} | {4001, 4003} |
{4019, 4021} | {4049, 4051} | {4091, 4093} | {4127, 4129} |
{4157, 4159} | {4217, 4219} | {4229, 4231} | {4241, 4243} |
{4259, 4261} | {4271, 4273} | {4337, 4339} | {4421, 4423} |
{4481, 4483} | {4517, 4519} | {4547, 4549} | {4637, 4639} |
{4649, 4651} | {4721, 4723} | {4787, 4789} | {4799, 4801} |
{4931, 4933} | {4967, 4969} | {5009, 5011} | {5021, 5023} |
{5099, 5101} | {5231, 5233} | {5279, 5281} | {5417, 5419} |
{5441, 5443} | {5477, 5479} | {5501, 5503} | {5519, 5521} |
{5639, 5641} | {5651, 5653} | {5657, 5659} | {5741, 5743} |
{5849, 5851} | {5867, 5869} | {5879, 5881} | {6089, 6091} |
{6131, 6133} | {6197, 6199} | {6269, 6271} | {6299, 6301} |
{6359, 6361} | {6449, 6451} | {6551, 6553} | {6569, 6571} |
{6659, 6661} | {6689, 6691} | {6701, 6703} | {6761, 6763} |
{6779, 6781} | {6791, 6793} | {6827, 6829} | {6869, 6871} |
{6947, 6949} | {6959, 6961} | {7127, 7129} | {7211, 7213} |
{7307, 7309} | {7331, 7333} | {7349, 7351} | {7457, 7459} |
{7487, 7489} | {7547, 7549} | {7559, 7561} | {7589, 7591} |
{7757, 7759} | {7877, 7879} | {7949, 7951} | {8009, 8011} |
{8087, 8089} | {8219, 8221} | {8231, 8233} | {8291, 8293} |
{8387, 8389} | {8429, 8431} | {8537, 8539} | {8597, 8599} |
{8627, 8629} | {8819, 8821} | {8837, 8839} | {8861, 8863} |
{8969, 8971} | {8999, 9001} | {9011, 9013} | {9041, 9043} |
{9239, 9241} | {9281, 9283} | {9341, 9343} | {9419, 9421} |
{9431, 9433} | {9437, 9439} | {9461, 9463} | {9629, 9631} |
{9677, 9679} | {9719, 9721} | {9767, 9769} | {9857, 9859} |
{9929, 9931} | {10007, 10009} | {10037, 10039} | {10067, 10069} |
{10091, 10093} | {10139, 10141} | {10271, 10273} | {10301, 10303} |
{10331, 10333} | {10427, 10429} | {10457, 10459} | {10499, 10501} |
{10529, 10531} | {10709, 10711} | {10859, 10861} | {10889, 10891} |
{10937, 10939} | {11057, 11059} | {11069, 11071} | {11117, 11119} |
{11159, 11161} | {11171, 11173} | {11351, 11353} | {11489, 11491} |
{11549, 11551} | {11699, 11701} | {11717, 11719} | {11777, 11779} |
{11831, 11833} | {11939, 11941} | {11969, 11971} | {12041, 12043} |
{12071, 12073} | {12107, 12109} | {12161, 12163} | {12239, 12241} |
{12251, 12253} | {12377, 12379} | {12539, 12541} | {12611, 12613} |
{12821, 12823} | {12917, 12919} | {13001, 13003} | {13007, 13009} |
{13217, 13219} | {13337, 13339} | {13397, 13399} | {13679, 13681} |
{13691, 13693} | {13709, 13711} | {13721, 13723} | {13757, 13759} |
{13829, 13831} | {13877, 13879} | {13901, 13903} | {13931, 13933} |
{13997, 13999} | {14009, 14011} | {14081, 14083} | {14249, 14251} |
{14321, 14323} | {14387, 14389} | {14447, 14449} | {14549, 14551} |
{14561, 14563} | {14591, 14593} | {14627, 14629} | {14867, 14869} |
{15137, 15139} | {15269, 15271} | {15287, 15289} | {15329, 15331} |
{15359, 15361} | {15581, 15583} | {15641, 15643} | {15647, 15649} |
{15731, 15733} | {15737, 15739} | {15887, 15889} | {15971, 15973} |
{16061, 16063} | {16067, 16069} | {16139, 16141} | {16187, 16189} |
{16229, 16231} | {16361, 16363} | {16451, 16453} | {16631, 16633} |
{16649, 16651} | {16691, 16693} | {16829, 16831} | {16901, 16903} |
{16979, 16981} | {17027, 17029} | {17189, 17191} | {17207, 17209} |
{17291, 17293} | {17387, 17389} | {17417, 17419} | {17489, 17491} |
{17579, 17581} | {17597, 17599} | {17657, 17659} | {17681, 17683} |
{17747, 17749} | {17789, 17791} | {17837, 17839} | {17909, 17911} |
{17921, 17923} | {17957, 17959} | {17987, 17989} | {18041, 18043} |
{18047, 18049} | {18059, 18061} | {18119, 18121} | {18131, 18133} |
{18251, 18253} | {18287, 18289} | {18311, 18313} | {18521, 18523} |
{18539, 18541} | {18911, 18913} | {18917, 18919} | {19079, 19081} |
{19139, 19141} | {19181, 19183} | {19211, 19213} | {19379, 19381} |
{19421, 19423} | {19427, 19429} | {19469, 19471} | {19541, 19543} |
{19697, 19699} | {19751, 19753} | {19841, 19843} | {19889, 19891} |
{19961, 19963} | {19991, 19993} | {20021, 20023} | {20147, 20149} |
{20231, 20233} | {20357, 20359} | {20441, 20443} | {20477, 20479} |
{20507, 20509} | {20549, 20551} | {20639, 20641} | {20717, 20719} |
{20747, 20749} | {20771, 20773} | {20807, 20809} | {20897, 20899} |
{20981, 20983} | {21011, 21013} | {21017, 21019} | {21059, 21061} |
{21191, 21193} | {21317, 21319} | {21377, 21379} | {21491, 21493} |
{21521, 21523} | {21557, 21559} | {21587, 21589} | {21599, 21601} |
{21611, 21613} | {21647, 21649} | {21737, 21739} | {21839, 21841} |
{22037, 22039} | {22091, 22093} | {22109, 22111} | {22157, 22159} |
{22271, 22273} | {22277, 22279} | {22367, 22369} | {22481, 22483} |
{22541, 22543} | {22571, 22573} | {22619, 22621} | {22637, 22639} |
{22697, 22699} | {22739, 22741} | {22859, 22861} | {22961, 22963} |
{23027, 23029} | {23039, 23041} | {23057, 23059} | {23201, 23203} |
{23291, 23293} | {23369, 23371} | {23537, 23539} | {23561, 23563} |
{23627, 23629} | {23669, 23671} | {23687, 23689} | {23741, 23743} |
{23831, 23833} | {23909, 23911} | {24107, 24109} | {24179, 24181} |
{24371, 24373} | {24419, 24421} | {24917, 24919} | {24977, 24979} |
{25031, 25033} | {25169, 25171} | {25301, 25303} | {25307, 25309} |
{25409, 25411} | {25469, 25471} | {25577, 25579} | {25601, 25603} |
{25799, 25801} | {25847, 25849} | {25931, 25933} | {25997, 25999} |
{26111, 26113} | {26249, 26251} | {26261, 26263} | {26681, 26683} |
{26699, 26701} | {26711, 26713} | {26729, 26731} | {26861, 26863} |
{26879, 26881} | {26891, 26893} | {26951, 26953} | {27059, 27061} |
{27107, 27109} | {27239, 27241} | {27281, 27283} | {27407, 27409} |
{27479, 27481} | {27527, 27529} | {27539, 27541} | {27581, 27583} |
{27689, 27691} | {27737, 27739} | {27749, 27751} | {27791, 27793} |
{27917, 27919} | {27941, 27943} | {28097, 28099} | {28109, 28111} |
{28181, 28183} | {28277, 28279} | {28307, 28309} | {28349, 28351} |
{28409, 28411} | {28547, 28549} | {28571, 28573} | {28619, 28621} |
{28661, 28663} | {28751, 28753} | {29021, 29023} | {29129, 29131} |
{29207, 29209} | {29387, 29389} | {29399, 29401} | {29567, 29569} |
{29669, 29671} | {29759, 29761} | {29879, 29881} | {30011, 30013} |
{30089, 30091} | {30137, 30139} | {30269, 30271} | {30389, 30391} |
{30467, 30469} | {30491, 30493} | {30557, 30559} | {30839, 30841} |
{30851, 30853} | {30869, 30871} | {31079, 31081} | {31121, 31123} |
{31151, 31153} | {31181, 31183} | {31247, 31249} | {31319, 31321} |
{31391, 31393} | {31511, 31513} | {31541, 31543} | {31721, 31723} |
{31727, 31729} | {31769, 31771} | {31847, 31849} | {32027, 32029} |
{32057, 32059} | {32117, 32119} | {32141, 32143} | {32189, 32191} |
{32297, 32299} | {32321, 32323} | {32369, 32371} | {32411, 32413} |
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