check whether a number is Prime number or not.

#include<stdio.h>
int main()

{
    int num,i,count=0;
    scanf("%d",&num);

    for(i=2;i<num;i++)
    {
        if(num%i==0)
        count++;
        break;
    }

    if(count==0)
        printf("prime number");

    else
        printf("not prime number");

    return 0;
}