Factorial using recursion in C

#include<stdio.h>
// recursive function to find factorial of a number
int fact(int num) 
{
    if(num>0)
        return num*fact(num-1);
    else
        return 1;
}
int main()
{
    int n, result;
    printf("Enter a positive number: ");
    scanf("%d",&n);
    result= fact(n);   
    printf("factorial of number= %d",result);
    return 0;
}