getting false factors

[Jorys22]

I wrote a factoring program and i am getting factors plus other numbers back im not sure why i have tried using differen't loops and changing the order of the operations. help please not sure what i need to change.

[code]
#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;

while ((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;
}

[Zhuge]

Use [code][/code] tags.

You need brackets around the code you want to run when the else if is hit, otherwise it runs only the next line and the rest is always run.