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A260382
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Primes that contain only the digits (3, 7, 9).
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3
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3, 7, 37, 73, 79, 97, 337, 373, 379, 397, 733, 739, 773, 797, 937, 977, 997, 3373, 3733, 3739, 3779, 3793, 3797, 7333, 7393, 7793, 7933, 7937, 7993, 9337, 9377, 9397, 9733, 9739, 9973, 33377, 33739, 33773, 33797, 33937, 33997, 37337, 37339, 37379, 37397
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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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MATHEMATICA
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Select[Prime[Range[5*10^3]], Complement[IntegerDigits[#], {3, 7, 9}]=={} &]
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PROG
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(Magma) [p: p in PrimesUpTo(2*10^5) | Set(Intseq(p)) subset [3, 7, 9]];
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CROSSREFS
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Cf. similar sequences listed in A260378.
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KEYWORD
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nonn,easy,base
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AUTHOR
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STATUS
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approved
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