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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The largest prime that cannot be the central number in a 3by3 prime magic square. [Rivera] Théorie des Nombres by AdrienMarie Legendre contained 859 large quarto pages and was the first text to record the observation that there seemed to be a curious connection between the prime counting function and the logarithm function.
(There are 4 curios for this number that have not yet been approved by an editor.)
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