Google employee breaks Guinness World Record calculating 31.4 trillion digits of Pi

Ceria Alfonso
Марта 14, 2019

She said the calculation took about 121 days to complete - with zero breaks, otherwise it would have been disrupted.

As a developer advocate, Iwao works with developers to help them get more from Google's cloud computing services - but she says the pi calculation was particularly important to her.

Emma Haruka Iwao, a Google employee from Japan, calculated pi to new world record.

It took Iwao four months and 25 Google Cloud virtual machines to calculate pi to a sprawling 31.4 trillion digits - breaking the previous record of 22.4 trillion set by Peter Trueb in 2016.

On the Google Cloud blog, Google announced that it managed to calculate pi to 31.4 trillion decimal places (31,415,926,535,897) using a y-cruncher created by Alexander J. Yee.

The Guinness World Records certified Iwao's milestone on Wednesday, making her the third woman to set a world record for calculating pi. Pi is an irrational and transcendental number and it continues infinitely without repetition or pattern.

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Since she was 12, Haruka Iwao has been fascinated by pi, the enigmatic mathematical constant defined as the ratio of a circle's circumference to its diameter. The feat was achieved using a Google Compute Engine virtual machine cluster to run the Pi benchmark program y-cruncher. The semi-official holiday for the unique number is celebrated by eating actual pies.

"We use Pi for everything in our daily lives - designing buildings, building bridges, highways", Iwao said in a video about her achievement.

Talking about her journey, she says, "When I was a kid, I didn't have access to supercomputers".

In the past, if you wanted to share the longest known version of pi, you had to put it on a hard drive and mail it.

"It begins with 3.1415 and it goes on forever", she said, adding pi manifests itself in daily life through buildings, highways and bridges. "Hopefully we can do an even bigger computation in the future".

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