In celebration of 3-14 or Pi Day, I bring you 10 interesting facts about the number π.

1. The number π is the world’s most recognizable constant.

2. π is equal to a circle’s circumference divided by its diameter. It is approximately 3.14159, though the number never stops and never repeats.

3. The symbol for pi – the Greek letter, π – has been used for about 250 years.

4. The first 144 digits of π add up to 666 or the mark of the beast. (Math must be evil.)

5. In 2008, a Wiltshire crop circle appeared, representing the first 10 digits of π.

6. The number 360 is at the 359th digit of π. The number of degrees in a circle is 360.

7. Albert Einstein was born on Pi Day in 1879.

8. The sequence 123456 never appears in the first million digits of π. However, 12345 appears eight times and 012345 appears twice.

9. At the Pi Search Page, you can find numbers – like your birthday, zip code, phone number – within the first 200 million digits of π.

10. The reflection the number 3.14 resembles the word PIE.

Happy Pi Day! Do you know any other fun facts about πShare your ideas in the comments section.