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A049588 Primes p such that x^56 = 2 has a solution mod p. 3
2, 7, 23, 31, 47, 73, 79, 89, 103, 151, 167, 191, 199, 223, 233, 257, 263, 271, 311, 359, 367, 383, 431, 439, 479, 487, 503, 599, 601, 607, 631, 647, 719, 727, 751, 823, 839, 863, 881, 887, 919, 937, 983, 991, 1031, 1039, 1063, 1087, 1103, 1151, 1217, 1223 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Complement of A059634 relative to A000040. - Vincenzo Librandi, Sep 14 2012
LINKS
MATHEMATICA
ok[p_] := Reduce[Mod[x^56 - 2, p] == 0, x, Integers] =!= False; Select[Prime[Range[200]], ok] (* Vincenzo Librandi, Sep 14 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(1300) | exists(t){x : x in ResidueClassRing(p) | x^56 eq 2}]; // Vincenzo Librandi, Sep 14 2012
CROSSREFS
Sequence in context: A049584 A045382 A049560 * A336786 A106020 A248602
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified March 19 01:34 EDT 2024. Contains 370952 sequences. (Running on oeis4.)