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Source Code to Calculate Factorial Using Recursion

 
Program:- 
#include<stdio.h>
int factorial(int n);
int main()
{
    int n;
    printf("Enter an positive integer: ");
    scanf("%d",&n);
    printf("Factorial of %d = %ld", n, factorial(n));
    return 0;
}
int factorial(int n)
{
    if(n!=1)
     return n*factorial(n-1);
}
 
 
 
Output
Enter an positive integer: 8
Factorial of 8  = 40320

 

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