From the BBC:
A researcher has calculated the 2,000,000,000,000,000th digit of the mathematical constant pi – and a few digits either side of it.
Nicholas Sze, of tech firm Yahoo, said that when pi is expressed in binary, the two quadrillionth digit is 0.
Mr Sze used Yahoo’s Hadoop cloud computing technology to more than double the previous record.
It took 23 days on 1,000 of Yahoo’s computers – on a standard PC, the calculation would have taken 500 years.
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