The book is now available! 769
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prime(769) = prime(7)*prime(6)*prime(9) + phi(769). The prime 769 is the only known number (up to 2*10^9) with this property. [Firoozbakht]

 

  Submitted: 2009-05-11 06:25:59;   Last Modified: 2009-05-11 11:36:27.



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