100% C program factorial of a natural number

// program to print factorial of a given natural number
#include <stdio.h>

void main()
{
    int i,n,factoria=1;
    printf("\n enter a natural number whose factorial is required:");
    scanf("%d",&n);
    for(i=2;i<=n;i++)
    {
        factoria=factoria*i;
    }
    printf("\n the factorial of %d is %d",n,factoria);
}

ఔట్పుట్  తెరమీద ఇలా  

enter a natural number whose factorial is required:7
the factorial of 7 is 5040