The quickest explanation of math, in 200 essential numbers.Why 60 seconds in a minute? Who invented zero? What exactly is pi? Why do mathematicians hunt prime numbers? And how can you get a number bigger than infinity? To find out, take a tour through 200 important, fascinating and unusual numbers - the easy and entertaining way to grasp mathematics. Numbers in Minutes demystifies the math surrounding the key numbers including: zero, 1-40, negatives, percentages, prime numb