Answers

2015-12-09T00:21:35+05:30
I assume you know how to calculate the exponent of a prime no. in a factorial
Basically you have to calculate the exponent of 10 but 10 is not a prime number so you have to calculate the exp. of 2 and 5 now whichever will the lowest will be the exp. of 10 and also the no. of zeroes
Hope this helps :)
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i want to get this answer without using calculator