First 372 chen primes

Chen primes: A prime number p is called a Chen prime if p + 2 is either a prime or semiprime.

First 372 chen primes have values between 2 and 4909.

Checkout list of first: 10, 50, 100, 500, 1000 chen primes. You can also check all chen primes.

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 47, 53, 59, 67, 71, 83, 89, 101, 107, 109, 113, 127, 131, 137, 139, 149, 157, 167, 179, 181, 191, 197, 199, 211, 227, 233, 239, 251, 257, 263, 269, 281, 293, 307, 311, 317, 337, 347, 353, 359, 379, 389, 401, 409, 419, 431, 443, 449, 461, 467, 479, 487, 491, 499, 503, 509, 521, 541, 557, 563, 569, 571, 577, 587, 599, 617, 631, 641, 647, 653, 659, 677, 683, 701, 719, 743, 751, 761, 769, 787, 797, 809, 811, 821, 827, 829, 839, 857, 863, 877, 881, 887, 911, 919, 937, 941, 947, 953, 971, 977, 983, 991, 1009, 1019, 1031, 1039, 1049, 1061, 1091, 1097, 1109, 1117, 1151, 1163, 1187, 1193, 1201, 1217, 1229, 1259, 1277, 1283, 1289, 1291, 1297, 1301, 1319, 1327, 1361, 1367, 1381, 1399, 1409, 1427, 1439, 1451, 1459, 1471, 1481, 1487, 1499, 1511, 1553, 1559, 1567, 1583, 1601, 1607, 1619, 1621, 1637, 1667, 1669, 1697, 1709, 1721, 1733, 1759, 1777, 1787, 1801, 1847, 1871, 1877, 1889, 1901, 1907, 1913, 1931, 1949, 1979, 1997, 2003, 2017, 2027, 2029, 2039, 2069, 2081, 2087, 2099, 2111, 2129, 2141, 2153, 2179, 2207, 2213, 2237, 2243, 2251, 2267, 2269, 2281, 2309, 2333, 2339, 2351, 2357, 2381, 2389, 2393, 2411, 2417, 2441, 2447, 2459, 2467, 2477, 2531, 2543, 2549, 2557, 2579, 2591, 2609, 2621, 2647, 2657, 2659, 2687, 2699, 2711, 2719, 2729, 2731, 2741, 2777, 2789, 2801, 2837, 2843, 2857, 2861, 2879, 2897, 2909, 2927, 2939, 2957, 2963, 2969, 2971, 2999, 3011, 3037, 3041, 3061, 3083, 3089, 3119, 3137, 3167, 3181, 3187, 3191, 3203, 3221, 3251, 3257, 3259, 3271, 3299, 3307, 3329, 3347, 3359, 3371, 3389, 3407, 3413, 3457, 3461, 3467, 3491, 3511, 3527, 3539, 3541, 3557, 3559, 3581, 3593, 3637, 3659, 3671, 3677, 3691, 3709, 3719, 3761, 3767, 3779, 3797, 3803, 3821, 3847, 3851, 3863, 3881, 3889, 3907, 3917, 3919, 3929, 3947, 3989, 4001, 4007, 4019, 4049, 4091, 4099, 4127, 4133, 4139, 4157, 4211, 4217, 4229, 4241, 4259, 4271, 4283, 4289, 4297, 4337, 4339, 4349, 4357, 4391, 4397, 4409, 4421, 4441, 4447, 4451, 4481, 4517, 4547, 4567, 4591, 4637, 4643, 4649, 4657, 4679, 4703, 4721, 4733, 4787, 4789, 4799, 4801, 4817, 4861, 4871, 4889, 4909

• Learn more about Chen primes.
• All chen primes