The twin primes 5 and 7 are such that one half their sum is a perfect number. Are there any other twin primes with this property?(adsbygoogle = window.adsbygoogle || []).push({});

It works for p=5. I think it should be of the form 1/2*(p+P+2). Is this true? How can I prove it?

Thx

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# Any help?

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