The book is now available! 127
(another Prime Pages' Curiosity)
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In the 19th century, Camille Armand Jules Marie, better known as the "Prince de Polignac," missed the fact that 127 is not an odd number that is the sum of a power of two and a prime. Andy Edwards coined the name "obstinate numbers" to describe such integers.

 

  Submitted: 2004-01-14 20:14:05;   Last Modified: 2008-06-28 13:01:07.



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