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A140969
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Prime numbers whose hexadecimal representation uses only the digits A,B,C,D,E,F (and not the decimal digits).
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3
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11, 13, 173, 191, 223, 239, 251, 2731, 2749, 2767, 2797, 3019, 3023, 3037, 3067, 3259, 3307, 3323, 3499, 3517, 3533, 3547, 3581, 3583, 3803, 3821, 3823, 4013, 4027, 4079, 4091, 4093, 43691, 43711, 43759, 43951, 43963, 43997, 44027, 44029, 44203, 44207
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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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11=B 13=D 113=AD 131=BB
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PROG
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(PARI) mindigit(n, b) = if(n<b, n, min(mindigit(floor(n/b), b), n%b))
isA140969(n) = (isprime(n) && mindigit(n, 16) > 9) (End)
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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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