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Question:  51 factorial endedwith how many zeros?



February 02, 2007 11:14:33 #3
 vinayprasad2006   Member Since: February 2007    Total Comments: 1 
RE: 51 factorial endedwith how many zeros?
 
The answer is 10 zeros.Explanation:To make a zero it requires a 5 and a 2 or a 10.from 1 to 10 we have a (5,2) and a 10 so multiplication of all would give 2 zeros.similarly from 11 to 20 another 2.so in total for 51! we have 10 zeros.
     

 

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