The book is now available! 20225
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ 2^n + 0^n + 2^n + 2^n + 5^n is a different prime number for n = 0 to 9. 20225 is the smallest positive integer for which this is true. [Gaydos]

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