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A199999 Composite numbers whose multiplicative persistence is 9. 0

%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

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)