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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The prime factorization of 20022002 is 2 x 7 x 11 x 13 x 73 x 137, which when grouped thus, 2 x 11, 13 x 73, and 7 x 137, yield 3 palindromic semiprimes: 22, 949, and 959. [Trotter]
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