"Why is 1 + 3 + 5 + 7 = 16?" "Why are there 10 bowling pins?" The answers to these questions lie within "triangular numbers" and "square numbers," which have been studied since ancient times. When you ...

666 is often called the "Number of the Beast," but it is actually a fascinating number from a mathematical perspective as well. It has such movingly wonderful properties that I hope you'll read on.