slight hick up with a factoring program

[Jorys22]

My program is giving me factors but its also giving me other numbers i put the variables as int but i think its still using the decimal places for the modulus function here is my program. any help would be greatly appreciated.

#include <iostream>
#include <iomanip>
using namespace std;

int main(void)
{
int num,
factor = 2,
counter = 0;

cout << "Please Enter a Positive Number: " << endl;
cin >> num;

if ((cin.fail()) || (num < 0))
{cin.sync();
cin.clear();
cout << "Positive Numbers Only, Please Re-Enter: " << endl;
cin >> num;}


do
{
if ((num % factor)!= 0)
factor++;

else if ((num % factor) == 0)
(num = num / factor);
cout << setw (10) << factor << " ";
counter++; factor++;
{if (counter % 4 == 0)
cout << endl;}

}
while (factor <= num);

cin.ignore(2);

return 0;
}