The book is now available! 413
(another Prime Pages' Curiosity)
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The number 413 is a semiprime, but (413 - 4)^4 + (413 - 1)^1 + (413 - 3)^3 is prime with prime length, and contains a prime number of prime digits in its decimal expansion. [Patterson]

 

  Submitted: 2006-10-20 15:23:45;   Last Modified: 2008-01-30 11:28:00.



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