%I
%S 1,2,3,4,5,6,7,8,9,25,26,27,35,45,55,56,57,58,67,68,77,255,256,257,
%T 355,455,555,556,557,558,567,568,577,2555,2556,2557,3555,4555,5555,
%U 5556,5557,5558,5567,5568,5577,25555,25556,25557,35555,45555,55555,55556
%N Records in A068189 (smallest number k such that n = product of nonzero digits of k, or 0 if no such k exists).
%C Numbers n such that A068189(n) is a record are given in A096868.
%F A007954(a(n)) = A002473(n).  _Charles R Greathouse IV_, Sep 29 2013
%e Product of nonzero digits of 257 is 70, for n < 70 the smallest number k such that n = product of nonzero digits of k (or 0 if no such k exists) is at most 256, hence 257 is a record.
%Y Cf. A068189, A096868.
%K nonn,base
%O 1,2
%A _Klaus Brockhaus_, Jul 13 2004
