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%I #11 Mar 30 2012 19:00:25
%S 1113,1131,1311,3111,13111,31111,111113,111131,111311,1111113,1111131,
%T 1111311,1113111,1131111,1311111,3111111,11111113,11311111,13111111,
%U 31111111,111111311,111113111,111131111,111311111,113111111,311111111,1111111113,1111111131
%N Composite numbers with digital product = 3.
%C Also composite numbers whose multiplicative digital root is 3. Complement of A107689 with respect to A034050.
%Y Cf. A107689 (primes with digital product = 3).
%Y Cf. A034050 (numbers with digital product = 3).
%K nonn,base
%O 1,1
%A _Jaroslav Krizek_, Nov 13 2011