The book is now available! 2243
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The smallest prime p such that p and the next 2 primes (2251, 2267) are all equal to 3 (mod 8). [Post]

+ 2243 is the sum of the squares of three distinct primes (3^2 + 5^2 + 47^2). [Suzuki]

+ The only 4-digit prime whose the reversal is an oblong number, 3422=18*19, i.e., a number that can be represented as the product of two successive numbers. [Loungrides]




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