A number theory problem by osman mohamad

What is the number of trailing zeros of ( 50 ! ) (50!) ?


The answer is 12.

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1 solution

Alan Yan
Aug 10, 2015

You just need to find the number of "5"'s in the expression. You can do so by taking the floor of 50/5 and adding that to the floor of 50/25 which gets you an answer of 12 \boxed{12}

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