Question

How many zeros are at the end of 50 factorial?

Answer 1

The 50 factorial end at the 5 zeros

Answer 2

Generally, to find the number of trailing zeros in a product of integers we use the below formula

$n/5 + n/5^2 + n/5^3 +$...

The numerator should be greater than denominator in all cases in the above formula.

n is the integer for which the factorial needs to be identified.

n = 50

$50/5 + 50/5^2 + 50/5^3 +$...

50/125 → here the numerator is greater than denominator so we will ignore it

50/5 + 50/25

= 10 + 2

= 12

So, the number of trailing zero for 50! is 12