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Old 2018-03-05, 05:52   #2
S485122's Avatar
Sep 2006
Brussels, Belgium

3·5·112 Posts

On the : GIMPS site there is a menu item "More Information / Help". In the page "The Maths", residue and shift are explained in the paragraph "Double-Checking" but benefits from the reading of the previous paragraph "Lucas-Lehmer Primality Testing" for better understanding.

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