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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The only palindrome compositedigit 2sphenic number, i.e., 99499 = 29 * 47 * 73. Note that the concatenation in order and reverse order of its prime factors, i.e., 294773 and 734729 are both primes. [Loungrides]
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