The book is now available! 656
(another Prime Pages' Curiosity)
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656 = pi(6*5*6) * phi(6+5+6). Note that 656 is the smallest multi-digit number with this property. [Firoozbakht]


  Submitted: 2004-09-09 00:54:30;   Last Modified: 2008-01-30 11:28:00.

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