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%I #8 Jun 08 2017 15:09:59
%S 3778888999,438939648,4478976,338688,27648,2688,768,336,54,20,0
%N Trajectory of 3778888999 under "x -> product of digits of x" map.
%C This is the smallest number of persistence 10 (cf. A003001).
%H N. J. A. Sloane, <a href="http://neilsloane.com/doc/persistence.html">The persistence of a number</a>, J. Recreational Math., 6 (1973), 97-98.
%t Most[FixedPointList[Times@@IntegerDigits[#]&,3778888999]] (* _Harvey P. Dale_, Jun 08 2017 *)
%Y Cf. A003001.
%K nonn,fini,full,base
%O 1,1
%A _N. J. A. Sloane_, Aug 12 2006
%E Edited by _Charles R Greathouse IV_, Aug 05 2010
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