The book is now available! 242
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ All prime factors and divisors of 242 are palindromic. [Hunter]

+ 242 is the smallest number that is one larger than a prime as well as being one less than the fifth power of another prime. [Patterson]

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