The book is now available! 18518809
(another Prime Pages' Curiosity)
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In 1778, Euler proved that 18518809 was prime by showing that it had a single representation in the form 1848x2 + y2. A remarkable feat for his time.

 

  Submitted: 2006-08-19 22:51:18;   Last Modified: 2008-07-31 21:12:45.



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