Centered heptagonal primes up to 967321

Centered heptagonal primes: Primes of the form (7n^2 − 7n + 2) / 2.

There is 107 centered heptagonal primes smaller than 967321.

Checkout centered heptagonal primes up to: 100, 500, 1000, 10000.

43, 71, 197, 463, 547, 953, 1471, 1933, 2647, 2843, 3697, 4663, 5741, 8233, 9283, 10781, 11173, 12391, 14561, 18397, 20483, 29303, 29947, 34651, 37493, 41203, 46691, 50821, 54251, 56897, 57793, 65213, 68111, 72073, 76147, 84631, 89041, 93563, 104147, 112771, 114031, 124363, 139301, 150697, 158047, 168631, 176401, 187573, 202441, 207523, 216133, 230273, 244861, 252323, 257993, 289297, 297403, 299447, 305621, 307693, 316051, 333103, 339613, 357281, 368551, 384623, 393961, 415381, 425083, 432433, 465011, 472697, 475273, 485647, 506731, 528263, 536453, 547471, 569843, 581197, 584053, 592663, 595547, 607153, 627733, 630701, 639647, 654697, 676061, 688423, 691531, 700897, 726181, 729373, 742211, 751913, 764947, 781397, 808081, 835213, 859321, 873251, 876751, 890821, 901447, 933703, 959183

• Learn more about Centered heptagonal primes.
• All centered heptagonal primes