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It was used in the world record calculations of 2.7 trillion digits of π in December 2009, [3] 10 trillion digits in October 2011, [4] [5] 22.4 trillion digits in November 2016, [6] 31.4 trillion digits in September 2018–January 2019, [7] 50 trillion digits on January 29, 2020, [8] 62.8 trillion digits on August 14, 2021, [9] 100 trillion ...
From 2002 until 2009, Kanada held the world record calculating the number of digits in the decimal expansion of pi – exactly 1.2411 trillion digits. [1] The calculation took more than 600 hours on 64 nodes of a HITACHI SR8000/MPP supercomputer. Some of his competitors in recent years include Jonathan and Peter Borwein and the Chudnovsky brothers.
The last 100 decimal digits of the latest world record computation are: [1] 7034341087 5351110672 0525610978 1945263024 9604509887 5683914937 4658179610 2004394122 9823988073 3622511852 Graph showing how the record precision of numerical approximations to pi measured in decimal places (depicted on a logarithmic scale), evolved in human history.
It produces about 14 digits of π per term [134] and has been used for several record-setting π calculations, including the first to surpass 1 billion (10 9) digits in 1989 by the Chudnovsky brothers, 10 trillion (10 13) digits in 2011 by Alexander Yee and Shigeru Kondo, [135] and 100 trillion digits by Emma Haruka Iwao in 2022. [136]
In March 2019, Emma Haruka Iwao, an employee at Google, computed 31.4 (approximately 10 π) trillion digits of pi using y-cruncher and Google Cloud machines. This took 121 days to complete. [49] In January 2020, Timothy Mullican announced the computation of 50 trillion digits over 303 days. [50] [51]
The first belongs to a family of formulas which were rigorously proven by the Chudnovsky brothers in 1989 [11] and later used to calculate 10 trillion digits of π in 2011. [12] The second formula, and the ones for higher levels, was established by H.H. Chan and S. Cooper in 2012. [3]
Download as PDF; Printable version ... with 12.1 trillion digits in just 94 days compared to 371 days that were spent for ... 25 billion digits of Pi are calculated ...
Later computers calculated pi to extraordinary numbers of digits (2.7 trillion as of August 2010), [4] and people began memorizing more and more of the output. The world record for the number of digits memorized has exploded since the mid-1990s, and it stood at 100,000 as of October 2006. [6]