# Pi day

### What is Pi Day?

What is Pi Day? - HISTORY What is Pi Day? March 14 marks Pi Day, an annual celebration of the mathematical sign pi. Founded in 1988 by physicist Larry Shaw, March 14 was selected because the numerical date (3.14) represents the first three digits of pi, and it also happens to be Albert Einstein’s birthday—the perfect pi-incidence.

### What do you know about Pi?

Pi (Greek letter “ π ”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159. Pi Day is an annual opportunity for math enthusiasts to recite the infinite digits of Pi, talk to their friends about math, and eat pie. Pi Day Expert Quiz!

### How many digits of pi (π) are below?

The first million digits of pi (π) are below, got a good memory? Then recite as many digits as you can in 30 seconds for our Pi Day Competition ! Why not calculate the circumference of a circle using pi here. Or simply learn about pi here. Maximize the fun you can have this Pi Day by checking out our Pi Day Merch. Pi Day Expert Quiz!

### When is Super Pi Day 2015?

The entire month of March 2014 (3/14) was observed by some as Pi Month. In the year 2015, March 14 was celebrated as Super Pi Day. It had special significance, as the date is written as 3/14/15 in month/day/year format.

### How many digits of Pi are there?

1 Million Digits of Pi The first 10 digits of pi (π) are 3.1415926535. The first million digits of pi (π) are below, got a good memory? Then recite as many digits as you can in 30 seconds for our Pi Day Competition! Why not calculate the circumference of a circle using pi here. Or simply learn about pi here.

### How do you find the exact value of Pi?

Fractions such as 22 113 are commonly used to approximate π, but no common fraction (ratio of whole numbers) can be its exact value. Because π is irrational, it has an infinite number of digits in its decimal representation, and does not settle into an infinitely repeating pattern of digits.

### Is Pi a useful number to learn?

Pi is a useful number, but only up to 40 digits. The more you add to it is not so important after all. I remember Pi up to 100 digits and here is the trick: Memorizing things over time. Don’t force your brain in one day. Use muscle memory if possible, try typing the digits out or writing if you prefer.

### What is the significance of pi (π)?

In fact if you search long enough within the digits of Pi (π) you can find any number, including your birthday. Pi (π) is also a really useful number. It appears everywhere in mathematics and also has countless uses in Engineering and Science. Lots of things are round, and whenever something is round, Pi (π) usually becomes important.