leetcode 172. Factorial Trailing Zeroes

https://leetcode.com/problems/factorial-trailing-zeroes/description/?envType=study-plan-v2&envId=top-interview-150 

Factorial Trailing Zeroes - LeetCode

 

from math import factorial
 
 
class Solution:
    def trailingZeroes(self, n: int) -> int:
        answer = 0
        if n == 0:
            return 0
        else:
            factorial_n = factorial(n)
            while factorial_n%10 == 0:
                factorial_n//=10
                answer += 1
        
        return answer