Well...Sorry to ask a really stupid or noob question. But I have been noticing that whenever we try to test the prime-ness, we always have to do things like Type A_Variable = true;, and this has to be put at the beginning of the program before we start anything else. Why do we always have to do that? Is there another way around do deal with prime number? Can it be put inside the loop or anywhere that doesn't effect the code that's being written?
That's what baffles me a lot as a noob.