Memorize Pi Digits

It’s a mathematical constant that is the ratio of any circle’s circumference to its diameter. It’s denoted by the Greek letter π, and it’s approximately equal to 3.14159.

In 1706, English mathematician and physicist Isaac Newton used calculus to calculate that Pi was equal to approximately 25/7—that is, it was equal to 3.142857… Ever since then, people have been trying to memorize more and more digits of Pi for fun and for glory. In 2016, Rajveer Meena from India won the title of “the new universal memory champion” by reciting Pi from memory up to 22,404 digits in just five hours and twenty-three minutes (that’s about 652 digits per hour). It was the first time anyone had broken the 22,000-digit barrier! The previous record-holder was Akira Haraguchi from Japan who recited it up to 67,890 digits in 2015.

Since then, many have tried to challenge these records—but none has succeeded yet. But there are plenty of other Guinness World Records out there if you’ve got memorization skills! You could memorize everyone’s birthday in your family or even their phone number. Or maybe you’d rather show off your

Did you know that Pi (π) is an irrational number? In other words, it can never be expressed as a fraction of two whole numbers or integers. The best way to describe how big it is is by using an example: if you were to lay out a circle with a diameter of one unit, it would have the circumference of 2π units. It’s also defined as the ratio of any circle’s circumference to the diameter of that circle. In other words, if you were to add up the distance around all sides of a circle and divided that total by two times its width, you would get π.