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A181525
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Prime numbers such that the difference between any pair of digits is 0, 2, 3, 5 or 7.
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1
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2, 3, 5, 7, 11, 13, 29, 31, 41, 47, 53, 61, 79, 83, 97, 113, 131, 163, 181, 227, 229, 257, 277, 311, 313, 331, 353, 383, 449, 461, 479, 499, 503, 557, 577, 613, 631, 641, 661, 683, 727, 757, 797, 811, 853, 863, 881, 883, 929, 947, 977, 997, 1163, 1181, 1361
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listen;
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internal format)
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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fQ[n_] := Union[ MemberQ[ {0, 2, 3, 5, 7}, # ] & /@ (Subtract @@ Sort[ #, Greater] & /@ Subsets[ IntegerDigits@ n, {2}])] == {True} && PrimeQ@ n; Select[ Range@ 1380, fQ]
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CROSSREFS
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KEYWORD
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nonn,base,less
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AUTHOR
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STATUS
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approved
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