C Program for Finding Factorial of a Number

Factorial of a number calculated by multiplying all the numbers up to a given number

Ex: 5!

to calculate 5! we need to multiply all the numbers under 5 till 1.

5*4*3*2*1 = 120

so, 5 factorial is 120.

#include<stdio.h>

int main()
{
    int i,n,factorial;
    

    printf(" Enter the number : ");
    scanf("%d",&n);

    factorial = 1;
    for(i=1; i<=n; i++)
    {
        factorial = factorial * i;
    }


    printf("\n Factorial of %d is %d",n,factorial );
    return 0;
}

 OUTPUT:

Enter the number : 5

Factorial of 5 is 120

How to compute factorial of large number, it is not possible with the existing data types

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