Figure 2-2 shows a different kind of program that asks the user to enter two integers ( which is simply the mathematical term for whole numbers without fractional parts ) , adds those integers together , and then displays the sum .
This next php script passes two integers and a float ( 144 , 22 and 34.3445 ) to a perl script , which uses the values to do some mathematical calculations ( sum , average , square root and more ) and prints the results .
It concerns a property of the product of the three integers axbxc , or abc - or more specifically , of the square-free part of this product , which involves their distinct prime factors .