The book is now available! 498
(another Prime Pages' Curiosity)
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498 = prime(498)-prime(4)*prime(9)*prime(8). 498 is the only known number (up to 1.3*10^8) with this property. [Firoozbakht]

 

  Submitted: 2009-05-08 17:44:35;   Last Modified: 2009-05-08 18:30:37.



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