Calculating Pi

On December 31st, 2009, Fabrice Bellard, a French programmer, calculated pi to a record 2700 billion decimal digits.

He did this using a desktop computer bought for less than £2000.

The computer took 131 days to complete the calcuation.

  • Computation of the binary digits: 103 days
  • Verification of the binary digits: 13 days
  • Conversion to base 10: 12 days
  • Verification of the conversion: 3 days
  • Total: 131 days

It would take approximately 49,000 years to recite the number.



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