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A077534
Multiples of 4 using only prime digits (2, 3, 5 and 7).
2
32, 52, 72, 232, 252, 272, 332, 352, 372, 532, 552, 572, 732, 752, 772, 2232, 2252, 2272, 2332, 2352, 2372, 2532, 2552, 2572, 2732, 2752, 2772, 3232, 3252, 3272, 3332, 3352, 3372, 3532, 3552, 3572, 3732, 3752, 3772, 5232, 5252, 5272, 5332, 5352, 5372
OFFSET
1,1
COMMENTS
Last digit is 2, next-to-last digit is odd, each remaining digit can be any prime digit.
MATHEMATICA
Select[4Range[2000], And@@PrimeQ[IntegerDigits[#]]&] (* Harvey P. Dale, Dec 13 2010 *)
CROSSREFS
Cf. A077533.
Sequence in context: A343154 A048734 A277870 * A164998 A165000 A259723
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 08 2002
EXTENSIONS
Corrected and extended by Sascha Kurz, Jan 03 2003
STATUS
approved