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Amateur Math Wiz Calculates Pi to 5T Digits

Breaks record on homemade computer

By Kevin Spak,  Newser Staff

Posted Sep 1, 2010 8:35 AM CDT

(Newser) – A Japanese math enthusiast has shattered the record for calculating the value of Pi. Shigeru Kondo, 55, spent roughly $17,800 building the homemade computer that helped him accomplish the feat—it boasted 32 terabytes-worth of hard drive, and had to have fans blown on it at all times to keep it cool. The calculation took 90 days and seven hours, and once was nearly ruined when Kondo’s daughter tripped a circuit breaker, the Daily Telegraph reports.

When the dust cleared, Kondo had calculated Pi to 5 trillion digits, shattering the 2.7 trillion digit record set by a French engineer late last year. He intends to apply to the Guinness Book of World Records, then do it all over again. He says he only used 60% of the computer’s capacity, and thinks he could get it up to 10 trillion digits if he tried.

Shigeru Kondo did not calculate Pi to 5 trillion digits on a blackboard, sadly.
Shigeru Kondo did not calculate Pi to 5 trillion digits on a blackboard, sadly.   (Shutterstock)
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COMMENTS
Showing 3 of 19 comments
wreckx
Sep 1, 2010 6:51 PM CDT
Did someone check his work? Let's see him do it with an abacus...then I'd be impressed...
2-bits
Sep 1, 2010 10:59 AM CDT
"had to have fans blown on it at all times to keep it cool." - Almost every computer ever. Journalists. Sheesh. Not that wouldn't generate a lot of heat but continuously blowing fans is completely pedestrian. Might as well be astonished by the fact that he had to breathe while programming it.
joradakovich
Sep 1, 2010 10:41 AM CDT
He could have spent a few hun on a surge protector....take it out of his daughter's allowance or something.....
 

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