Check prime number in C++ by R4R Team

program:

#include < iostream>
using namespace std;
class myclass
{
public:
int prime(int n)
{
int i;
for(i=2;i< n-1;i++)
{
if(n%i==0){
cout<<"It's Not Prime";
return 0;
}
}
cout<<"It's Prime";
}
};
int main()
{
int n,ans;
myclass obj;
cout<<"Enter any numbern";
cin>>n;
ans=obj.prime(n);
return 0;
}

Enter any number
13
It's Prime

Enter any number
12
It's not Prime