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Old 2021-09-20, 19:33   #5
Batalov
 
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Mar 2008
Phi(4,2^7658614+1)/2

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Quote:
Originally Posted by kijinSeija View Post
(3+sqrt(-7/4))*(3-sqrt(-7/4)) = 43/4 right ? I'm not sure about that
Use (a-b)(a+b) = a2 - b2
and Bob's your uncle.
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