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

+ 112 = 24 * 7. Note that 74 - 2 is prime. [Luhn]

+ The only 3-digit number such that its factorial raised to the sum of its digits and increased by one is prime. I.e., 112!^(1+1+2)+1 is prime. [Opao]

+ 112!*211! - 1 is prime. [Firoozbakht]

+ The smallest multi-digit composite nude number whose the reversal is prime. (A nude number is a number that is divisible by all of its digits). [Loungrides]

(There is one curio for this number that has not yet been approved by an editor.)

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