A Google Employee Just Broke the World Record for Calculating Pi

A Google employee has broken the world record for calculating pi just in time for the mind-bogglingly long number's special day. Emma Haruka Iwao spent four months working on the project in which she calculated pi to 31.4 trillion digits. Pi holds a special place in the realm of math. It's an irrational number that continues infinitely without repetition. You calculate it by dividing a circle's circumference by its diameter.