%I #9 Mar 30 2012 19:00:28
%S 26888999,26889899,26889989,26889998,26898899,26898989,26898998,
%T 26899898,26899988,26988899,26988989,26988998,26989889,26989898,
%U 26989988,26998889,26998898,26998988,26999888,28688999,28689899,28689989,28689998,28698989,28698998,28699898
%N Composite numbers whose multiplicative persistence is 9.
%C Complement of A046509 with respect to A046518.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/MultiplicativePersistence.html">Multiplicative Persistence</a>
%e 26888999 -> [ 4478976 ][ 338688 ][ 27648 ][ 2688 ][ 768 ][ 336 ][ 54 ][ 20 ][ 0 ] -> one digit in nine steps.
%Y Cf. A046509 (primes whose multiplicative persistence is 9).
%K nonn,base
%O 1,1
%A _Jaroslav Krizek_, Nov 13 2011
|