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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) A 3sphenic number, i.e., 29177723 = 107 × 389 × 701, with emirp prime factors, that is the concatenation in order of the 4digit primes 2917, 7723 whose the concatenation in reverse order, i.e., 77232917, becomes the exponent in the 50th Mersenne prime. [Loungrides]
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