C Program to calculate factorial using Recursive function

C Program to find the factorial of a number. In this program we used the Recursion method. Recursion is the programming technique that a process invoking itself again and again. The standard recursive function for factorial is factorial=n*fact(n-1). factorial of number denoted by ‘!’, means product of all non negative integers from 1 to number. example: 5!=5*4*3*2*1=120. Read more about C Programming Language .

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#include<stdio.h>
int factorial(int);

void main()
{
int num;
printf("Enter the number to calculate Factorial :");
scanf("%d",&num);
printf("nFactorial : %d", factorial (num));

}
int factorial (int i)
{
int f;
if(i==1)
return 1;
else
f = i* factorial (i-1);
return f;
}
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