[C++] Finding Factors Of A Number Code

This is the source code with some notes, have questions, post them.

Code:

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#include <iostream.h>


int main()
{
   
    int x, r;
    cout<<"Enter an integer: ";
    cin>>x;
    cout<<"The factors of "<<x<<" are: ";
    for(int a = 1; a<=x; a++)  // for loop to keep each number appearing
    {
            r=x%a; //modulus (finds remainder when dividing
           
            if(r == 0)// it's basically dividing your number by numbers 1-the integer you've inputted.
            {        //if there is no remainder to the number (mean it divides perfectly) the program outputs that number
                      //thus outputting factors.
                      // if you want the exe tell me.
                 
                  cout<<a<<" ";
            }
    }
    cout<<endl;
    system ("PAUSE");
    return 0;
   
}

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