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Prime Numbers

  1. The 46th Mersenne Prime (
      "A Mersenne number is a positive number that can be expressed in the form 2n-1. A Mersenne prime is a Mersenne number that is, well, prime. Searching for higher and higher Mersenne primes is the unofficial national sport of mathematicians. The 45th and 46th (right) Mersenne primes were found this year, the latter by a team at UCLA. It has almost 13 million digits." 10-08

  1. The Largest Prime (CNN News)
      "The biggest prime number yet has been discovered."

      "It is indeed massive, more than 17 million digits long. A text file of the entire number contains more than 22 megabytes of information."

      "For those who have been out of school for a while, let's review: A prime number is a positive integer that cannot be divided evenly by any number except itself and 1. The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29."


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