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Old 2016-04-06, 18:22   #6
Batalov
 
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Mar 2008
Phi(4,2^7658614+1)/2

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For all of the values in that table, is x = {{p_{TWIN} + 1} \over 6} prime? (So that the twins would be 6x-1 and 6x+1, you know?)

Hint: no.
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