#### Abstract

Given two integers, say and , the quotient may or may not be an integer (e.g., ½½ but ½¾ ¾). Number theory concerns the former case, and discovers criteria upon which one can decide about divisibility of two integers. More formally, for ¼ we say that divides if there is another integer such that and we write. In short: if and only if ¾ This simple… (More)