Dsa
Math
Medium
Factorial Digit Sum
Write a program that takes an integer N as input and calculates the sum of the digits of N!. For instance, if N is 5, N! equals 120, and the sum of the digits (1 + 2 + 0) equals 3. The program should read N and print the digit sum of N!.
Input Format:
- A single integer N (0 <= N <= 100).
Output Format:
- A single integer: the sum of the digits of N!.
Example:
Input:
5
Output:
3
Key concepts
mathfactorialdigit-sum
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