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A077536 Multiples of 7 using only prime digits (2, 3, 5 and 7). 0

%I

%S 7,35,77,252,273,322,357,525,532,553,735,777,2233,2275,2352,2373,2527,

%T 2555,2723,2737,2772,3227,3255,3325,3332,3353,3535,3577,3752,3773,

%U 5222,5257,5327,5355,5523,5537,5572,5733,5775,7252,7273,7322,7357,7525,7532

%N Multiples of 7 using only prime digits (2, 3, 5 and 7).

%t Select[7*Range[1100],And@@PrimeQ[IntegerDigits[#]]&] (* _Harvey P. Dale_, Jul 18 2011 *)

%Y Cf. A077533, A077534, A077535.

%K base,nonn

%O 0,1

%A _Amarnath Murthy_, Nov 08 2002

%E Corrected and extended by _Sascha Kurz_, Jan 03 2003

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Last modified September 17 18:12 EDT 2021. Contains 347489 sequences. (Running on oeis4.)