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%I #2 Oct 02 2013 15:47:16
%S 5040,355687428096000,15511210043330985984000000,
%T 265252859812191058636308480000000,
%U 13763753091226345046315979581580902400000000
%N Smallest factorial containing exactly n 5's.
%e a(2)=355687428096000 so 355687428096000 is the smallest factorial containing exactly two 5's.
%K base,nonn
%O 1,1
%A _Shyam Sunder Gupta_, Jul 30 2002
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