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.
StorageReview Calculated 100 Trillion Digits of Pi in 54 days, Besting Google Cloud. Pi represents the ratio of a circle's circumference to its diameter, and it has an infinite number of decimal digits that never repeat or end.
Theoretical PhysicsPi
3.14159265358979323846264338327950288419716939937510 etc. Before you click remember - it's a byte a digit! The first 1000000 decimal places contain: 99959 0s, 99758 1s, 100026 2s, 100229 3s, 100230 4s, 100359 5s, 99548 6s, 99800 7s, 99985 8s and 100106 9s.
What is the 100th digit of Pi? The last digit of the number above is the 100th decimal of Pi. As you can see, the 100th decimal of Pi is 9.
The value of pi is approximately 3.14, or 22/7. To 39 decimal places, pi is 3.141592653589793238462643383279502884197. Pi is an irrational number, which means it is not equal to the ratio of any two whole numbers. Its digits do not repeat.
10^7 * 3.141592653589793238462643383… = 31415926.
But did you know those post-decimal numbers continue infinitely? Pi is an irrational number, which means it cannot be represented as a simple fraction, and those numbers cannot be represented as terminating or repeating decimals. Therefore, the digits of pi go on forever in a seemingly random sequence.
Value of Pi (π) in Fractions
The pi value in fraction is 22/7. It is known that pi is an irrational number which means that the digits after the decimal point are never-ending and being a non-terminating value. Therefore, 22/7 is used for everyday calculations.
Last time it took pi to 31.4 trillion digits. The last 100 digits of the 100 trillion pi it discovered are: 4658718895 1242883556 4671544483 9873493812 1206904813 2656719174 5255431487 2142102057 7077336434 3095295560.
One million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. The word is derived from the early Italian millione (milione in modern Italian), from mille, "thousand", plus the augmentative suffix -one.
Akira Haraguchi (原口 證, Haraguchi Akira) (born 1946, Miyagi Prefecture), is a retired Japanese engineer known for memorizing and reciting digits of pi.
We have known since the 18th century that we will never be able to calculate all the digits of pi because it is an irrational number, one that continues forever without any repeating pattern.
"The 62.8 trillion digits of pi are only a side effect of testing and benchmarking our new computing infrastructure," explained Keller. "Pi has been known for centuries to a precision of several hundred digits. Even in the most precise calculations in science and engineering, a few dozen digits are enough."
In the endless pursuit of Pi's post-decimal values, most couldn't get farther than Rajveer Meena — who memorised and recited an unfathomable 70,000 digits in about 10 hours. Rajveer Meena memorised and recited Pi up to 70,000 decimal places while blindfolded. He achieved the feat at VIT in Vellore, India, in 2015.
How Many Digits of Pi Does NASA Use? Let's see if the number of digits matters when you're calculating something vast, like a distance in space. For most calculations, NASA uses 15 digits: 3.141592653589793.
Regardless of the circle's size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14. But pi is an irrational number, meaning that its decimal form neither ends (like 1/4 = 0.25) nor becomes repetitive (like 1/6 = 0.166666...). (To only 18 decimal places, pi is 3.141592653589793238.)
In the past, many math books listed Pi as 22/7. Again, this is just an approximation but it is better than the value of 3 (actually 22/7 is closer to Pi than just writing 3.14).
The first calculation of π was done by Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world.
In a session lasting more than an hour on Nov 1, Siddharth, who celebrated his 12th birthday on Nov 8, ended up reciting 2,856 digits and became the Singapore record holder for the most number of Pi digits memorised. He beat the previous record holder, Singaporean Paula Zheng Jiahui, by 230 digits.
It turns out that 37 decimal places (38 digits, including the number 3 to the left of the decimal point) would be quite sufficient. Think about how fantastically vast the universe is.
Hiroyuki Gotō (後藤 裕之, Gotō Hiroyuki, born in Tokyo, Japan) recited pi from memory to 42,195 decimal places at NHK Broadcasting Centre, Tokyo on 18 February 1995.
While treating pi as equal to 3.14 is often good enough, the number really continues on forever, a seemingly random series of digits ambling infinitely outward and obeying no discernible pattern — 3.14159265358979….
It's not possible that the decimal expansion of π is finite and we just weren't patient enough. π is an irrational number, and irrational numbers have non-terminating, non-repeating decimal expansions.