C++ Program to find factorial of a number

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In this program, You will learn how to find factorial of a number in C++.

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3! = 1 * 2 * 3

4! = 1 * 2 * 3 * 4

5! = 1 * 2 * 3 * 4 * 5

Example: How to find factorial of a number in C++.

#include<iostream>
using namespace std;

int main() {

    long int num, i, f = 1;

    cout << "Enter a number:";
    cin>>num;

    for (i = 1; i <= num; i++) {
        f = f * i;
    }
    cout << "Factorial is:" << f;

    return 0;
}

Output:

Enter a number:4
Factorial is:24