%I A121042
%S A121042 1,2,3,4,5,6,7,8,9,1,1,1,1,1,1,1,1,1,1,2,1,2,23,2,5,2,27,2,29,3,1,2,3,
%T A121042 34,5,3,37,38,3,4,1,2,43,4,5,46,47,4,49,5,1,2,53,54,5,56,57,58,59,6,1,
               2,
%U A121042 3,4,5,6,67,68,69,7,1,2,73,74,5,76,7,78,79,8,1,2,83,4,5,86,87,8,89,9,1
%N A121042 Smallest divisor of n that is also contained in the decimal representation 
               of n.
%C A121042 1 <= a(n) <= n;
%C A121042 a(A011531(n)) = 1; a(n) = n iff A121041(n) = 1.
%e A121042 a(48) = Min{4, 8, 48} = 4;
%e A121042 a(49) = Min{49} = 49;
%e A121042 a(120) = Min{1, 2, 12, 20, 120} = 1;
%e A121042 a(121) = Min{1} = 1.
%Y A121042 Sequence in context: A133500 A052423 A126616 this_sequence A000030 A134777 
               A004427
%Y A121042 Adjacent sequences: A121039 A121040 A121041 this_sequence A121043 A121044 
               A121045
%K A121042 nonn,base
%O A121042 1,2
%A A121042 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 21 2006