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A140969 Prime numbers whose hexadecimal representation uses only the digits A,B,C,D,E,F (and not the decimal digits). 3
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Charles R Greathouse IV, Nov 16 2009, Table of n, a(n) for n = 1..10000

EXAMPLE

11=B 13=D 113=AD 131=BB

PROG

From Michael B. Porter, Dec 01 2009: (Start)

(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)

CROSSREFS

Cf. A238090.

Sequence in context: A178426 A252170 A144375 * A064759 A238090 A093605

Adjacent sequences:  A140966 A140967 A140968 * A140970 A140971 A140972

KEYWORD

base,nonn

AUTHOR

Gil Broussard, Jul 27 2008

EXTENSIONS

Edited by N. J. A. Sloane, Nov 15 2009

STATUS

approved

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Last modified November 20 04:05 EST 2017. Contains 294959 sequences.