Pi facts
Other Famous Numbers
Rhymes with Pi
Happy Pi Day
"Pi" Incorporated
100

 pi rounded to 5 decimal places is this number.

What is 3.14159?

100
A 1 followed by 100 zeros is this number which sounds a lot like the world's most popular search engine.

What is googol?

100

A long piece of cloth worn around the neck.

What is a tie?

100

Eli Whitney received the patent for this mechanical device on Pi Day in 1794.

What is the cotton gin?

100

This animation studio has produced 27 feature films including Toy Story, Toy Story 2, Toy Story 3, and Toy Story 4.

What is Pixar?

200

 pi is the 16th letter of this alphabet.

What is Greek?

200

This number was introduced by Jacob Bernoulli in 1683, for solving the problem of continuous compounding of interest. It equals lim_{n\rightarrow\infty}(1+1/n)^n .

What is e?

200

A false statement made with the intention to deceive someone or to mislead others.

What is a lie?

200

This German-born physicist whose most famous equation,  E=mc^2, does not include the number  pi,  was born on Pi Day in 1879.

Who is Albert Einstein?

200

This company's mascot sports a scarf and a chef's hat and if you poke his belly he might just giggle (Hoo-Hoo!).

What is Pillsbury?

300

 pi is the ratio of a circle's circumference to the circle's this.

What is diameter?

300

If you raise  pi to this number you will get 1.

What is 0?

300

A technique of coloring fabric by binding portions of it tightly with thread, string, or rubber bands.

What is tie-dye? 

300

This NBA star who has won 4 NBA championships and 2 NBA MVP awards while playing point guard for the Golden State Warriors was born on Pi Day in 1988.

Who is Stephen Curry?

300

If you're looking for recipe, DIY projects, fashion, home decor, or travel ideas you might visit a virtual board from this visual search engine company.

What is Pinterest?

400

This fraction is commonly used to approximate  pi .

What is 22/7?

400

DAILY DOUBLE

This number has been used to study patterns in nature, including the spiral arrangement of leaves and other parts of vegetation. Its algebraic form is   {1+sqrt{5}}/2 .

400

A deep audible breath expressing various emotions such as relief, exhaustion, frustration, or longing. 

What is a sigh?

400

This physicist and author of A Brief History of Time whose work made the detailed study of black holes possible died on Pi Day in 2018 at the age of 76.

Who is Stephen Hawking?

400

This Japanese pen company is the producer of G2 Premium Gel Roller Pens.

What is Pilot?

500

A famous math problem involves dropping these on a lined sheet of paper and determining the probability of one of them crossing one of the lines on the page. It can be used to design a Monte Carlo method for approximating  pi.

What are needles?

500

This number is the length of the diagonal across a square with sides of length 1.

What is \sqrt{2}?

500

This abundant animal is included in the order Diptera and includes about 98,500 species worldwide.

What is a fly?

500

This gymnist who has won 7 olympic medals including four gold, one, silver, and two bronze was born on Pi Day in 1997.

Who is Simone Biles?

500

This franchise of frozen dessert restaurants currently has over 260 stores in 20 countries.

What is Pinkberry?