The number of completed the first four since 1990, 100 by the ancient Greeks, by the number of them, namely 6, 28, 496 and 8128 Euclid later told the form of the number of pairs by prove that if 2 n-1 is the number of a specific number of addresses in the form 2n-1 (2 n-1) is complete. This theory was proven back article by Euler, that is, if N is the number of N, then the pair will return the image in 2n-1 (2 n-1) n-1 is the number 2 only when we call n-1 when n is a prime number 2 this particular number that only Zen (Mersenne primes), Mare, this name was established in the 17th century, the domain.It is named after the mathematician Marin Mersenne who discover France nationals. From the past to the present, the number of discovered only just 48 Sen the Mare (referenced from [8]), making the total number of pairs in the form complete 2n-1 (2 n-1) n-1 is the number 2 only just discovered Zen Mare with 48, but there is an expectation that there are number of countless are complete. The complete part number is odd, no one can yet answer is whether or not there is still a question, and that old and still no one answered today. Just some of the treasures we know that number is odd (if any).
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