Moonie, that was good timing on your part
Moonie posted:El Loro posted:(x - y) times ((x+y) equals x² - y². If x = 80 and y = 2 then x-y=78 and x+y=82 so 78 x 82 = 80² - 2² = 6400 - 4 = 6396.
I knew that El
*crosses fingers behind back*
And if you think about it, it means that the difference between the squares of two whole numbers cannot be a prime number.
Yogi, I won't ask you to differentiate with respect to you