- Find an n such that for odd prime p, p^p+n is prime only for one value of p.

Phil

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http://voice.yahoo.com - --- Phil Carmody <thefatphil@...> wrote:
> Find an n such that for odd prime p, p^p+n is prime only for one value of p.

Even n, that is. Negative odd n values can force all values to be even, such

that one of the terms is 2. (As spotted by Ronny off-list - good catch.)

Phil

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http://smallbusiness.yahoo.com/r-index - Phil wrote on 11/12/2006 04:10:28 AM:

> Find an n such that for odd prime p, p^p+n is prime only

I never heard an answer for this, but I think it is: -25

> for one value of p.

>

> Phil

>

Or, actually, 2-p^p for p any odd prime.

Tom Hadley

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