The book is now available! 192
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ 3^192 + 192 - 2 is prime and contains a sum of digits equal to 19^2. [Patterson]

+ The smallest happy number sandwiched between a twin prime pair. [Gupta]

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

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