The book is now available! 205081
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ (7, 11, 13, 17, 19, 23) is the only set of six consecutive primes p, pi < 100, such that the average of every two consecutive 4th powers of them is prime. The largest such average is 205081 = (19^4+23^4)/2. [Loungrides]

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