The book is now available! 13216141
(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 strong pseudoprime (base 2) which is the product of two strong pseudoprimes (base 2), i.e., 13216141 = 3277*4033, where 13216141, 3277, and 4033 are all strong pseudoprimes (base 2). [Gupta]




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