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Old 2020-12-25, 18:54   #37
R. Gerbicz
 
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"Robert Gerbicz"
Oct 2005
Hungary

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Quote:
Originally Posted by alpertron View Post
For example, the time required for indicating that x900 + 2 is irreducible changed from 12 seconds to 4.7 seconds.
That is way slower than my brain, it is irreducible with Eisenstein's criterion using p=2, ref:
https://en.wikipedia.org/wiki/Eisenstein%27s_criterion
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