A120366 - OEIS

A120366

Primes p such that p-1 is not a multiple of 3, 4 or 5.

2, 3, 23, 47, 59, 83, 107, 167, 179, 227, 239, 263, 347, 359, 383, 419, 443, 467, 479, 503, 563, 587, 599, 647, 659, 683, 719, 743, 827, 839, 863, 887, 947, 983, 1019, 1103, 1163, 1187, 1223, 1259, 1283, 1307, 1319, 1367, 1427, 1439, 1487, 1499, 1523, 1559

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

FORMULA

((p-1) mod 3) > 0, ((p-1) mod 4) > 0, ((p-1) mod 5) > 0.

EXAMPLE

347 is a term because none of 3, 4, 5 is a factor of 347 - 1 = 346.

MATHEMATICA

Select[Prime[Range[300]], FreeQ[Mod[#-1, {3, 4, 5}], 0]&] (* Harvey P. Dale, Apr 13 2019 *)

CROSSREFS