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

+ 115 (or 5! - 5) is the smallest composite number of the form p! - p, where p is prime. [Bakker]

+ 115 = 23 x (2 + 3). [Sladcik]

+ The smallest integer n, in which pi(n) occurs at the nth decimal place of pi. [Wu]

+ The smallest three-digit integer, abc, such that (abc)/(a*b*c) is also prime. [Patterson]

+ An emirpimes, ending with the smallest emirpimes. It implies that two emirpimes can be found in its reversal. [Capelle]

+ pi(115) = (1*1*5)^1 + (1*1*5)^2. [Bervaye]

(There are 3 curios for this number that have not yet been approved by an editor.)

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