Programming Examples

C program to find the factorial using recursion


Write program to compute factorial of a user input number using recursive function.

Solution

#include<stdio.h>
int factorial(int);
int main()
{
	int num,ans;
	printf("Enter any number : ");
	scanf("%d",&num);
	ans=factorial(num);
	printf("Factorial of %d is : %d",num,ans);
	return 0;
}
int factorial(int n)
{
	if(n==1)
		return 1;
	else 
		return n*factorial(n-1);
}
Output

Enter any number : 5

Factorial of 5 is : 120

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