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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 671 is the 3digit composite number (K) that yields the greatest percentage of primes from Leonhard Euler's formula: X^2 + X + K. 453 out of 1000 possible primes (45.3%). [Morse] 671!/176! + 1 is prime. [Firoozbakht]
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