SOLUTION: Prove that for any prime k>2, some prime k-2 or k+2 exists.

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Question 1005057: Prove that for any prime k>2, some prime k-2 or k+2 exists.
Answer by ikleyn(52800) About Me  (Show Source):
You can put this solution on YOUR website!
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Your statement is wrong.

Indeed, consider the prime k = 23.

k-2 = 21 is not prime.

k+2 = 25 is not prime.