The book is now available! 16561
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ 16561 = 9^2^2 + 10^2^2. [Imgregor]

+ The smallest palindromic prime consisting of the digits in which biquadrates of positive digits end. It is also the sum of biquadrates of two successive numbers, i.e., 9^4+10^4. [Loungrides]

+ The smallest multidigit palindromic Quartan prime. [Gupta]

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