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A113615
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Primes in which the frequency of every digit is also prime.
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1
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11, 11177, 11551, 11717, 11777, 12211, 13313, 13331, 14411, 15511, 15551, 16661, 17117, 18181, 19919, 19991, 21121, 21211, 21221, 22111, 22277, 22727, 22777, 27277, 32233, 32323, 33113, 33223, 33311, 33377, 33773, 35353, 35533, 37337
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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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11777 is a term as it contains two ones and three sevens.
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MATHEMATICA
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Select[Prime[Range[10^4]], And @@ PrimeQ /@ Length /@ Split[Sort[IntegerDigits[ # ]]] &] (* Ray Chandler, Nov 11 2005 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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