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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 7777/2861 is the fraction with the smallest prime denominator closer to e than 1650/607. The largest known prime number that cannot be expressed as the sum of 3 pentagonal numbers. [Capelle] The smallest prime which prefixed by the concatenation of two perfect numbers. [Firoozbakht] Magnus Carlsen's peak rating is 2861, the highest in chess history. Smallest prime that uses four distinct digits such that every different permutation of its digits is composite. [Vantieghem]
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