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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The middle of only three integers n for which pi(n x 2) = n/2. [Woods]

+ Expressible as the sum of primes in two distinct ways such that all primes involved are consecutive (beginning with 2): 50 = 2 + 5 + 7 + 17 + 19 = 3 + 11 + 13 + 23. [Rivera]

+ 50 is the smallest number m such that sum of each digits of prime(m) raised to m is prime. I.e., prime(50) = 229; 2^50 + 2^50 + 9^50 is prime. [Kazemi]

+ There are 50 primes of the form 4n+3 up to 4n+3 = 500. [Post]

(There are 4 curios for this number that have not yet been approved by an editor.)




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