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A062338
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Primes whose sum of digits is a multiple of 4.
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4
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13, 17, 31, 53, 71, 79, 97, 103, 107, 211, 233, 251, 277, 349, 367, 389, 431, 439, 457, 479, 503, 521, 547, 569, 587, 619, 659, 673, 677, 691, 701, 709, 727, 839, 853, 857, 907, 929, 947, 983, 1021, 1061, 1069, 1087, 1151, 1201, 1223, 1249, 1289, 1429
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OFFSET
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1,1
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LINKS
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EXAMPLE
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349 is a prime with sum of digits =16=4*4, hence belongs to the sequence.
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MAPLE
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filter:= x -> (convert(convert(x, base, 10), `+`) mod 4 = 0) and isprime(x);
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PROG
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(Magma) [ p: p in PrimesUpTo(10000) | &+Intseq(p) mod 4 eq 0 ]; /* Vincenzo Librandi, Apr 02 2011 */
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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EXTENSIONS
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Corrected and extended by Larry Reeves (larryr(AT)acm.org), Jul 06 2001
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STATUS
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approved
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