1. Pi is the most recognized mathematical constant in the world. Scholars often consider Pi the most important and intriguing number in all of mathematics.
2. In 2002, a Japanese scientist found 1.24 trillion digits of pi using a powerful computer called the Hitachi SR 8000, breaking all previous records. The current record for calculating pi, as of 2010, is to 5 trillion digits
3. In 2005, Lu Chao of China set a world record by memorising the first 67,890 digits of pi.
4. Computing pi is a stress test for a computer -- a kind of "digital cardiogram.
5. The first 144 digits of pi add up to 666, the Number of the Beast in the Book of Revelation.
6. William Shanks (1812-1882) worked for years by hand to find the first 707 digits of pi. Unfortunately, he made a mistake after the 527th place and, consequently, the following digits were all wrong.
7. Albert Einstein was born on Pi day. March 14 is international Pi Day. Get it: pi is 3.14, and March 14 is 3/14.
8. Before the p symbol was used, mathematicians would describe pi in round-about ways such as “quantitas, in quam cum multipliectur diameter, proveniet circumferential,” which means “the quantity which, when the diameter is multiplied by it, yields the circumference.
8. Plato (427-348 B.C.) supposedly obtained for his day a fairly accurate value for pi: v2 + v3 = 3.146.
9. A Web site titled “The Pi-Search Page” finds a person’s birthday and other well known numbers in the digits of pi.
10. 3.14 backwards looks like PIE. "I prefer pi" is a palindrome.
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