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Primes (Posted on 2003-09-09)

If x and (x² + 8) are both primes, then prove that (x³ +16) is also a prime.

See The Solution Submitted by Ravi Raja

Rating: 4.2500 (12 votes)

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re: Second thought

| Comment 3 of 9 |

(In reply to Second thought by DJ)

I'm tempted to agree... I wrote a quick program (but it's late... and I may have made a mistake in it...), and I couldn't find any number that satisfies this... below 1,000,000 (apart from 3).

hmmmm

--- SK

Posted by SilverKnight on 2003-09-10 00:04:37

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