Me too. It sure "looked prime"!
Yeah. I can just look at a number, and I have a pretty good idea if it might be a prime (example: 37 yes, 42 no). Does that mean I have savant powers?
>Me too. It sure "looked prime"!<
It did, but the only thing that saved me is a rule I learned in elementary school - add the 2 integers (5+7), and if they equal a number divisible by 3, then the higher number is also divisible by 3.
Ok I just bored the math whizzes on this thread to tears.