When was pi first discovered?

Pi's concept was recognized by ancient Babylonians and Egyptians around 4,000 years ago, who used rough approximations (like 3.125 or 3.16) for practical uses; the first rigorous calculation came from Archimedes (c. 250 BCE) who narrowed it to between 3 1/7 and 3 10/71, while the symbol "π" wasn't introduced until the 1700s.
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Who discovered pi for the first time?

Archimedes was the first person to calculate an accurate estimate for pi, which we've since discovered is equal to about 3.14159.
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Is pi 100% accurate?

pi has infinite digits, so there has never been a 100% accurate calculation with a circle and there never will be.
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Why is there a 999999 in pi?

It is named after physicist Richard Feynman, who once stated during a lecture he would like to memorize the digits of π until that point, so he could recite them and quip "nine nine nine nine nine nine and so on", suggesting, in a tongue-in-cheek manner, that π is rational.
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What is the 105 trillionth digit of pi?

After successfully breaking the speed record for calculating pi to 100 trillion digits last year, the team at StorageReview has taken it up a notch, revealing all the numbers of Pi up to 105 trillion digits! Spoiler: the 105 trillionth digit of Pi is 6!
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Unveiling The Remarkable Discovery Of Pi By A Genius - Prepare To Be Amazed!

Why is 355-113 so close to pi?

355/113 is a good fractional approximation of π, because we use six digits to produce seven correct digits of π.
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Who memorized 100,000 digits of pi?

Retired Japanese engineer Akira Haraguchi is famous for memorizing and reciting 100,000 digits of Pi in 2006, a monumental feat that took over 16 hours and involved converting numbers into stories using Japanese syllables, though Guinness World Records hasn't officially certified it, with their official record held by Rajveer Meena (70,000 digits).
 
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Why is 52 an untouchable number?

The number 52 is an "untouchable number" in mathematics because it cannot be the result of adding up the proper divisors (all divisors except the number itself) of any other integer; it's never "touched" by the aliquot sum function, unlike most numbers, making it a rare number in number theory, with only 2 and 5 preceding it in the sequence of untouchables. 
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Does 123456789 appear in pi?

In the first 1 billion digits of π, I found two instances of 123456789, but no instances of 1234567890. Here's a simple example. In the first billion digits, there were 10049 instances of 12345. There were 969 instances of 123456.
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Does 314 repeat in pi?

Pi is actually an irrational number (a decimal with no end and no repeating pattern) that is often rounded with the decimal 3.14. That's why we celebrate it on March 14 or 3.14 each year!
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Why is 22 divided by 7 pi?

This fractional representation is widely used in classrooms and common calculations, leading to the widespread yet erroneous belief that π is precisely equal to 22/7. While 22/7 serves as a convenient approximation, it does not capture the true essence and value of π.
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Who calculated 62.8 trillion digits of pi?

On 14 August 2021, a team (DAViS) at the University of Applied Sciences of the Grisons announced completion of the computation of π to 62.8 (approximately 20π) trillion digits.
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What precision of pi does NASA use?

For the highest precision calculations, which are used for interplanetary navigation, NASA uses 3.141592653589793 — that's fifteen decimal places. The reason why is quite simple, going into any greater precision is unnecessary.
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What is pi used for today?

Today pi is used in math, science, engineering, architecture, construction and manufacturing, building space ships and planning space flight and much more. It's so valuable that congress declared March 14—3.14—National Pi Day. Which coincidentally—or maybe not—is Albert Einstein's birthday.
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What is the last digit of pi?

Actually pi is irrational, so that is neither repeating nor terminating decimal, so there will be no last digit. There is none as it is an irrational number. pi is about 22/7 as fraction. It is a non terminating and non repeating decimal.
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Who first proved pi?

The first calculation of π was done by Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world.
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How do you say 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 in Spanish?

To say 1 through 14 in Spanish, you say: uno, dos, tres, cuatro, cinco, seis, siete, ocho, nueve, diez, once, doce, trece, catorce, with numbers 1-15 having unique names and 16-20 blending "-dieci-" and the numbers.
 
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What is the 31 trillionth digit of pi?

Humans have now calculated the never-ending number to 31,415,926,535,897 (get it?) — about 31.4 trillion — decimal places. It's a Pi Day miracle!
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What is the square root of 1000000000?

The square root of 1000000000 is 31622.777. Click here to learn more about square roots!
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What number is the unluckiest number?

The number 13 may be associated with some famous but undesirable dinner guests. In Norse mythology, the god Loki was 13th to arrive at a feast in Valhalla, where he tricked another attendee into killing the god Baldur. In Christianity, Judas — the apostle who betrayed Jesus — was the 13th guest at the Last Supper.
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What is the 300 trillion digit of pi?

The record-setting achievement was documented in a feature video released by the Linus Tech Tips YouTube channel, giving viewers a behind-the-scenes look at the project and revealing the final digit of the record-setting calculation: spoiler alert…the 300 trillionth digit of Pi is 5.
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Who recited 70,000 digits of pi?

The record for memorizing the first 70,000 digits of Pi is held by Rajveer Meena from India, who achieved this feat in March 2015, reciting the digits while blindfolded over nearly 10 hours, as recognized by Guinness World Records and other sources.
 
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What is the 100 trillionth digit of pi?

The 100-trillionth decimal place of π (pi) is 0. A few months ago, on an average Tuesday morning in March, I sat down with my coffee to check on the program that had been running a calculation from my home office for 157 days. It was finally time — I was going to be the first and only person to ever see the number.
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