The book is now available! 580
(another Prime Pages' Curiosity)
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580 = pi(pi(5! + 8! + 0!)). Note that 580 is the only multidigit number with this property. [Firoozbakht]

 

  Submitted: 2007-11-09 23:27:12;   Last Modified: 2008-01-30 11:28:00.



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