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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The smallest composite for which the reverse of its digits in hexadecimal, decimal, octal, and binary are all prime. [Wolfe] Twice the 92nd power of the 92nd prime minus one is prime (i.e., 2*p(92)^921 is prime). 92 is the largest such number less than a thousand. [Opao]
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