Five is the Evenest Odd of Them All If I told you that dividing the number 74230 by 5 is about as easy as it gets, would you believe me? Clearly you can't rely on the old "five times WHAT is equal to 74,230," because nobody memorizes their times tables up to five digit numbers. So there must be a trick, right? Indeed there is. But first... Before writing this post I googled "what is dividing by five good for." Can you guess what I found? That's right. Nothing. Sure, it's handy if you need to figure out how to share a pizza amongst five friends and the like, but it doesn't have the gravitas of doubling or halving. Five is an odd number and odd numbers are appreciated for their symmetry-breaking aesthetics. Three is too few, and seven is too many. Five is just right! Well maybe it is or maybe it isn't, but it is darned easy to divide with. A number is divisible by five if it ends in zero or five. Depending on how you look at it, th