Largest prime number discovered.
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Curtis Cooper from the University of Central Missouri has discovered the largest known prime number as part of the Great Internet Mersenne Prime Search (GIMPS). An integer greater than one is called a prime number if its only divisors are one and itself. For, example the first prime numbers are 2,3,5,7 and 11. The record prime number, 257,885,161-1, has 17,425,170 digits.
According to a news release from the project, GIMPS is the longest continuously-running global “grassroots supercomputing” project in Internet history.