C program to find factorial of a given number

Below is the program to find the factorial of a given number

#include <stdio.h>
int main(){
    int n,fact=1,i;
    printf("Enter a number:");
    scanf("%d",&n);
    if(n<0){
        printf("Factorial of negative number doesn't exist");
    }else{
        for(i=1;i<=n;i++){
            fact*=i;
        }
        printf("Factorial of given number is %d",fact);
    }
}

Output:

Enter a number:6
Factorial of given number is 720