Isolated primes up to 4820

Isolated primes: Primes p such that neither p−2 nor p+2 is prime.

There is 402 isolated primes smaller than 4820.

Checkout isolated primes up to: 100, 500, 1000, 10000.

2, 23, 37, 47, 53, 67, 79, 83, 89, 97, 113, 127, 131, 157, 163, 167, 173, 211, 223, 233, 251, 257, 263, 277, 293, 307, 317, 331, 337, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 439, 443, 449, 457, 467, 479, 487, 491, 499, 503, 509, 541, 547, 557, 563, 577, 587, 593, 607, 613, 631, 647, 653, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 839, 853, 863, 877, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997, 1009, 1013, 1039, 1069, 1087, 1097, 1103, 1109, 1117, 1123, 1129, 1163, 1171, 1181, 1187, 1193, 1201, 1213, 1217, 1223, 1237, 1249, 1259, 1283, 1297, 1307, 1327, 1361, 1367, 1373, 1381, 1399, 1409, 1423, 1433, 1439, 1447, 1459, 1471, 1493, 1499, 1511, 1523, 1531, 1543, 1549, 1553, 1559, 1567, 1571, 1579, 1583, 1597, 1601, 1613, 1627, 1637, 1657, 1663, 1693, 1709, 1733, 1741, 1747, 1753, 1759, 1777, 1783, 1801, 1811, 1823, 1831, 1847, 1861, 1867, 1889, 1901, 1907, 1913, 1973, 1979, 1987, 1993, 2003, 2011, 2017, 2039, 2053, 2063, 2069, 2099, 2137, 2153, 2161, 2179, 2203, 2207, 2213, 2221, 2243, 2251, 2273, 2281, 2287, 2293, 2297, 2333, 2347, 2351, 2357, 2371, 2377, 2389, 2393, 2399, 2411, 2417, 2423, 2437, 2441, 2447, 2459, 2467, 2473, 2477, 2503, 2521, 2531, 2539, 2543, 2557, 2579, 2609, 2617, 2621, 2633, 2647, 2663, 2671, 2677, 2683, 2693, 2699, 2707, 2719, 2741, 2749, 2753, 2767, 2777, 2797, 2819, 2833, 2837, 2843, 2851, 2857, 2861, 2879, 2887, 2897, 2903, 2909, 2917, 2927, 2939, 2953, 2957, 2963, 3011, 3019, 3023, 3037, 3041, 3049, 3061, 3067, 3079, 3083, 3089, 3109, 3137, 3163, 3181, 3187, 3191, 3203, 3209, 3217, 3221, 3229, 3271, 3307, 3313, 3319, 3323, 3343, 3347, 3407, 3413, 3433, 3449, 3457, 3491, 3499, 3511, 3517, 3533, 3547, 3571, 3593, 3607, 3613, 3617, 3623, 3631, 3637, 3643, 3659, 3677, 3691, 3697, 3701, 3709, 3719, 3727, 3733, 3739, 3761, 3779, 3793, 3797, 3803, 3833, 3847, 3863, 3877, 3881, 3889, 3907, 3911, 3923, 3943, 3947, 3967, 3989, 4007, 4013, 4027, 4057, 4073, 4079, 4099, 4111, 4133, 4139, 4153, 4177, 4201, 4211, 4253, 4283, 4289, 4297, 4327, 4349, 4357, 4363, 4373, 4391, 4397, 4409, 4441, 4447, 4451, 4457, 4463, 4493, 4507, 4513, 4523, 4561, 4567, 4583, 4591, 4597, 4603, 4621, 4643, 4657, 4663, 4673, 4679, 4691, 4703, 4729, 4733, 4751, 4759, 4783, 4793, 4813, 4817

• Learn more about Isolated primes.
• All isolated primes