Program for factorial using recursion in C

Learn about Program for factorial using recursion in C in the below code example. Also refer the comments in the code snippet to get a detailed view about what’s actually happening.

Contents

Program for factorial using recursion in C

Program:

#include<stdio.h>

int factorial(int n) 
{
     if(n!=0)
         return n*factorial(n-1);
     else
         return 1; 
}

int main()
{
     int num, result;
     printf("Enter a positive number: ");
     scanf("%d",&num);
     result= factorial(num); //function call
     printf("Result = %d\n",result);
     return 0;
}

Output:

Enter a positive number: 5
Result = 120

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