Program for Zeroes in Factorial | Dataford Interview Questions

Write a program that finds the number of zeroes when multiplying a series of numbers (a factorial).

Implement trailing_zeroes(n), which receives a non-negative integer n and returns the number of trailing zeroes in n!. A trailing zero is a zero at the end of the decimal representation. Your solution must avoid constructing the full factorial and should handle large values of n.

Constraints

0 <= n <= 10^9
Return an integer count.
Do not construct or store the full value of n!.

Function Signature

def trailing_zeroes(n):

Your question is Program for Zeroes in Factorial. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Write a program that finds the number of zeroes when multiplying a series of numbers (a factorial).

Constraints

0 <= n <= 10^9
Return an integer count.
Do not construct or store the full value of n!.

Function Signature

def trailing_zeroes(n):

Your question is Program for Zeroes in Factorial. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.