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A040108
Primes p such that x^4 = 6 has no solution mod p.
1
7, 11, 13, 17, 29, 31, 37, 41, 53, 59, 61, 73, 79, 83, 89, 101, 103, 107, 109, 113, 127, 131, 137, 151, 157, 179, 181, 193, 197, 199, 223, 227, 229, 233, 251, 257, 269, 271, 277, 281, 293, 313, 317, 337, 347, 349
OFFSET
1,1
COMMENTS
Complement of A040107 relative to A000040. - Vincenzo Librandi, Sep 17 2012
LINKS
MATHEMATICA
ok[p_]:= Reduce[Mod[x^4 - 6, p] == 0, x, Integers] == False; Select[Prime[Range[100]], ok] (* Vincenzo Librandi, Sep 17 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(500) | not exists{x : x in ResidueClassRing(p) | x^4 eq 6} ]; // Vincenzo Librandi, Sep 17 2012
CROSSREFS
Sequence in context: A279190 A309671 A073704 * A038931 A141189 A191035
KEYWORD
nonn,easy
AUTHOR
STATUS
approved