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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) (3407, 7043) is the only pair of 4digit distinctdigit emirps whose one digit is equal to the sum of the other digits. [Loungrides] An emirp whose sum of two leftmost digits is equal to the sum of its two rightmost digits. [Forouhari]
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