The book is now available! 1571
(another Prime Pages' Curiosity)
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1571 = prime(pi(1!!*5!!*7!!*1!!)). It is the only known multidigit number with this property. [Firoozbakht]

 

  Submitted: 2009-08-07 18:47:18;   Last Modified: 2009-08-08 00:12:12.



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