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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) 122 squared minus each of its prime factors squared is also prime. [Sladcik] 122 is the smallest sum of two nonconsecutive factorials of distinct primes (2! + 5!). [Gevisier] The smallest dihedral semiprime in which all four associated semiprimes are distinct. Note that it contains the smallest dihedral semiprime (22) and also the smallest dihedral prime (2). [Capelle] There are no twin primes between 122 squared and the next consecutive square. [Kremer and Rosenthal]
(There are 2 curios for this number that have not yet been approved by an editor.)
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