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A045352
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Primes congruent to {1, 2, 5, 7} mod 8.
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2
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2, 5, 7, 13, 17, 23, 29, 31, 37, 41, 47, 53, 61, 71, 73, 79, 89, 97, 101, 103, 109, 113, 127, 137, 149, 151, 157, 167, 173, 181, 191, 193, 197, 199, 223, 229, 233, 239, 241, 257, 263, 269, 271, 277, 281, 293, 311
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OFFSET
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1,1
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COMMENTS
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LINKS
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MAPLE
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select(isprime, map(t -> op([1, 2, 5, 7] + t*[8, 8, 8, 8]), [$0..100])); # Robert Israel, Sep 12 2014
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MATHEMATICA
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Select[Prime[Range[300]], MemberQ[{1, 2, 5, 7}, Mod[#, 8]]&] (* Vincenzo Librandi, Aug 07 2012 *)
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PROG
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(Magma) [ p: p in PrimesUpTo(1000) | p mod 8 in {1, 2, 5, 7} ]; // Vincenzo Librandi, Aug 07 2012
(PARI) isok(n)=isprime(n) && n%8%3 != 0 \\ Edward Jiang, Sep 09 2014
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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