in this code why we can not take i==num in for loop?

Question

#include<iostream>
using namespace std;
int main()
{
int num;
int i;int div = 0;
cout << "ent no"<< endl;
cin >> num;
for (i = 1; i <= num; i++)
{
if (num % i == 0)
{
div++;
}
}
if (div == 2)
cout << "yes!!!!/n";
else
{
cout << "noooooooooooooooo/n";
}

Answer 1

yes you can, but be carefull of the div value... it increases each time that num%i==0

Answer 2

You can use "i == num"
If the user inputs 1, the condition is true and it will run ..but once only.