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 A179030 Primes whose only prime digits are 7's. 2
 7, 17, 47, 67, 71, 79, 97, 107, 167, 179, 197, 467, 479, 487, 607, 617, 647, 677, 701, 709, 719, 761, 769, 787, 797, 877, 887, 907, 947, 967, 971, 977, 997, 1087, 1097, 1117, 1171, 1187, 1447, 1471, 1487, 1607, 1667, 1697, 1709, 1741, 1747, 1777, 1787, 1789 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[Prime[Range[300]], MemberQ[IntegerDigits[#], 7] &&And @@ Table[FreeQ[ IntegerDigits[#], n], {n, {2, 3, 5}}] &] (* Harvey P. Dale, Sep 24 2022 *) CROSSREFS Cf. A179031. Sequence in context: A253973 A200080 A347124 * A179031 A107178 A061722 Adjacent sequences: A179027 A179028 A179029 * A179031 A179032 A179033 KEYWORD nonn,base AUTHOR Lekraj Beedassy, Jun 25 2010 EXTENSIONS Corrected by Ray Chandler, Jul 13 2010 STATUS approved

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Last modified March 31 17:16 EDT 2023. Contains 361668 sequences. (Running on oeis4.)