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Old 2005-09-29, 07:46   #11
mpenguin
 
Aug 2005

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Quote:
Originally Posted by Yamato
Let F(n) = 2^(2^n) + 1.

Then the "trivial" square root of 2 is

Yes, the square root of 2 is trivial mod Fn.

(2+2^(1/2))^2 and (2+(2+2^(1/2))^(1/2))^(1/2) mod Fn are a little more subtle.
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