Home » 50 Interesting Facts About Pi You Need to Know!

50 Interesting Facts About Pi You Need to Know!

Update on: 14 Mar 2024, 09:48 AM

March 14th, is a special day for mathematicians and math enthusiasts around the world – it’s Pi Day, and it’s not the pie you can eat! Pi was invented by William Jones a Welsh mathematician and Pi Day is celebrated on this date because the first three digits of the mathematical constant Pi are 3.14, which corresponds to the date March 14th. This day is not only a fun and quirky way to celebrate math, but it also serves as an opportunity to raise awareness about the importance of mathematics in our daily lives.

Why is π Pi  Important?

Pi is a mathematical constant that represents the ratio of a circle’s circumference to its diameter. This ratio is the same for all circles, regardless of their size. Pi is an irrational number, which means that it cannot be expressed as a simple fraction and its decimal representation goes on indefinitely without repeating.


Pi is used in a wide range of mathematical and scientific fields, including geometry, trigonometry, physics, engineering, and statistics. It is essential for calculating the area and volume of circles and spheres, as well as for solving equations involving periodic functions.

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50 Fascinating Facts About Pi

Here are 50 Fascinating Facts About Pi!

  1. Pi is a mathematical symbol that represents the circumferential ratio of a circle to its diameter.
  2. Pi Day is celebrated on March 14th after its first three digits – 3.14.
  3. Its value is about 3.14159.
  4. March 14th is also known as Genius’s Day due to the birth of physicist Albert Einstein on that day.
  5. The “π” symbol, which means “periphery” or “perimeter,” describes a circle’s circumference.
  6. Pi is also known as “Archimedes’ constant,” “the circular constant,” or “Ludolph’s number.”
  7. It is impossible to find the true value of Pi as it is an irrational number.
  8. The digits of Pi have been computed to over a trillion digits past its decimal point.
  9. Mathematical facts about the Great Pyramid show that the computation of its dimensions by Pi only has a 0.1% error.
  10. The number 360 could be found in the 359th digit position in Pi.
  11. “Squaring the circle” to understand Pi is one method that intrigued mathematicians.
  12. The number 5 appears the most times in the first million decimal places of Pi with 100,359 repeats.
  13. Pi used to have a sentence-long name before the emergence of the symbol π.
  14. The sequence 123456 does not appear in the first million digits of Pi.
  15. Pi has other uses in fields like probability, number theory, and chaos theory.
  16. The physical Earth proved the precision of Pi in calculating its circumference.
  17. Reciting the value of Pi would take over a decade to finish with all its known figures.
  18. Archimedes of Syracuse made the first calculation of Pi.
  19. Zu Chongzhi used a similar approach to calculate Pi without knowing Archimedes.
  20. The history of Pi traces back to the ancient Babylonians.
  21. The Rhind Papyrus of 1650 BC registers the first use of the “squaring the circle” method to compute Pi.
  22. Math fanatics from other foreign countries choose July 22nd as their Pi Day.
  23. Pi has an entire language dedicated to it called Pilish.
  24. A “Piem” is a poem in the Pilish language.
  25. Japanese game designer Hiroyoki Gotu memorized 42,195 places of the digits of Pi.
  26. Akira Haraguchi recited 100,000 decimal places of Pi beating the record in 2006.
  27. The largest human Pi symbol was formed in Germany in 2014.
  28. The longest human line of Pi digits was set in Todi, Italy in 2017.
  29. A crop circle with the first 10 digits of Pi appeared near Wroughton’s English village in 2008.
  30. Stephen Hawkin’s death anniversary also falls on 14 March.
  31. Trillions of digits of Pi are not all needed, as NASA engineers only use 15 decimal places.
  32. The exact right time for the celebration at Pi Day is 1:59 pm.
  33. The Exploratorium Science Museum holds a circular parade every Pi Day.
  34. Organizations host 3.14-mile runs in anticipation of Pi Day.
  35. The value of Pi inadvertently tested an FBI agent’s intellectual acuity during the O.J. Simpson trial.
  36. Pi was mentioned in the Bible in 1 Kings 7:22.
  37. Geometry proposes more accurate ways to compute Pi than the old-fashioned method.
  38. Mathematicians still have yet to figure out the real nature of Pi.
  39. The concept of Pi held the key to the universe in Carl Sagan’s novel Contact.
  40. Pi drove a man mad in the movie Pi: Faith in Chaos.
  41. Pi has a customised cologne named after it.
  42. Pi has haters who argue for the recognition of “tau” as well.
  43. In the Greek alphabet, π (piwas) is the sixteenth letter. In the English alphabet, p is also the sixteenth letter.
  44. The first 144 digits of pi add up to 666 (which many scholars say is “the mark of the Beast”). And 144 = (6+6) x (6+6).
  45. Computing pi is a stress test for a computer—a kind of “digital cardiogram.”
  46. The first million decimal places of pi consist of 99,959 zeros, 99,758 1s, 100,026 2s, 100,229 3s, 100,230 4s, 100,359 5s, 99,548 6s, 99,800 7s, 99,985 8s, and 100,106 9s.
  47. A website titled “The Pi-Search Page” finds a person’s birthday and other well-known numbers in the digits of pi.
  48. An ancient mathematician’s method of computing Pi is by adding more sides to a polygon until it closes in on the area of a circle.
  49. The one who holds the Guinness World Record in the Pi game is Rajveer Meena.
  50. Plato (427-348 B.C.) supposedly obtained for his day a fairly accurate value for pi: √2 + √3 = 3.146.


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Pi Day and the Importance of Math Education

Pi Day serves as a reminder of the importance of mathematics in our daily lives and the need for improved math education worldwide. In many countries, students struggle with math concepts and fail to see the real-world applications of mathematics. By celebrating Pi Day and promoting math-related activities, we can encourage a greater appreciation for the beauty and utility of mathematics.

Mathematics education plays a crucial role in shaping the future of science, technology, engineering, and mathematics (STEM) fields. By fostering a love of math in students from an early age, we can inspire the next generation of mathematicians, engineers, and innovators to make groundbreaking discoveries and advancements in the world.

Black and White Illustrated Happy Pi Day

So, whether you’re a math enthusiast or someone who simply enjoys a good slice of pie, take some time today to celebrate Pi Day and reflect on the significance of mathematics in our lives. You may be surprised at how much math influences the world around you and how a little bit of Pi can go a long way!

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