Thread: is it possible
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Old 2020-07-08, 16:29   #8
drmurat
 
"murat"
May 2020
turkey

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Quote:
Originally Posted by sweety439 View Post
k*2^n+1 and k*2^(n+1)+1 can be both prime only for k divisible by 3, or one of these two numbers will be divisible by 3.
can you give sample
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