The book is now available! 193
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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193 = 2*3*5*7 - (2+3+5+7), i.e., the product of the first four primes minus the sum of the first four primes. [Alves]


  Submitted: 2011-08-15 07:59:58;   Last Modified: 2018-03-11 18:23:30.

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