Prime numbers upto N

/* Write a code to print the prime numbers within a given of 1 to n.
Input:
10
Output:
2
3
5
7 */

#include<stdio.h>

int prime(int n)
{
    int i;
    if(n != 2 && n % 2 == 0) return 0;
    for(i = 3; i*i <= n; i++)
    {
        if(n % i == 0) return 0;
    }
    return 1;
}

int main()
{
    int n, i;
    scanf("%d", &n);

    for(i = 2; i <= n; i++)
    {
        if(prime(i))
        {
            printf("%d\n", i);
        }
    }
}