The book is now available! 680189
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The smallest prime rotative twin (invertible prime) to contain five different digits. [Trigg]

+ The smallest invertible prime containing all the invertible digits that is the hypotenuse of a Pythagorean triangle, i.e., (468939^2+492700^2=680189^2). Curiously, 680189 is also expressible as the sum of two squares (758^2+325^2). [Bajpai]

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