A045458 Primes congruent to 5 mod 7.

5, 19, 47, 61, 89, 103, 131, 173, 229, 257, 271, 313, 383, 397, 439, 467, 509, 523, 593, 607, 677, 691, 719, 733, 761, 859, 887, 929, 971, 1013, 1069, 1097, 1153, 1181, 1223, 1237, 1279, 1307, 1321, 1433, 1447, 1489, 1531, 1559, 1601, 1657, 1699, 1741, 1783

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Comments

Subsequence of A017041. - Michel Marcus, May 06 2014

Primes congruent to 5 mod 14. - Chai Wah Wu, Apr 28 2025

Links

• Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A045320 (complement), A017041, A045471, A045473.

Programs

Magma

[ p: p in PrimesUpTo(11000) | p mod 7 eq 5 ]; // Vincenzo Librandi, Aug 13 2012

Mathematica

Select[Range[5, 50000, 7], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 13 2011 *)

PARI

is(n)=isprime(n) && n%7==5 \\ Charles R Greathouse IV, Jul 01 2016