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kadirveluselvaraju kadirveluselvaraju
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Largest prime numberIn 1997, Gordon Spence discovered the largest known prime number, 2^2976221  1, the 36th known Mersenne prime number. It took his 100MHz Pentium PC fifteen days to prove it. At 895,932 digits in length, if printed out the number would stretch for 1.4 miles or if spoken 8 hours a day would take 28 days to complete. 