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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The first prime (emirp) of form aba, where a, b are successive doubledigit numbers. [Loungrides] The first prime formed by inserting a composite number between two doubledigit identical adjacent primes is an emirp. [Loungrides] The smallest emirp such that the sum of any two of its digits is prime. [Loungrides]
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