The book is now available! 47
(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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47 is the last "totally safe" prime: 47 -> 23 -> 11 -> 5 -> 2 (complete descending sequence of safe primes till 2 is reached). [Wood]

 

  Submitted: 2010-11-25 04:00:46;   Last Modified: 2019-01-20 22:50:41.



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