MHB Prime Or Composite - Proof required?

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The discussion centers on determining whether the quadratic expression n^2 - 14n + 40 is prime or composite for integer values of n less than or equal to zero. Participants are asked to provide a proof for their findings regarding the primality of the expression. The original poster expresses confidence in performing the calculations but seeks assistance specifically with the proof aspect. The thread emphasizes the need for a rigorous mathematical demonstration to support any claims made about the expression's nature. The conversation concludes with a request for further exploration of the topic in a linked forum.
johnny009
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n^2 - 14n + 40, is this quadratic composite or prime - when n ≤ 0.

Determine, all integer values of 'n' - for which n^2 - 14n + 40 is prime?

Proof Required.

ps. I can do the workings, but the 'proof' is the problem.

Many Thanks

John.
 
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Please continue the thread found http://mathhelpboards.com/discrete-mathematics-set-theory-logic-15/proof-amp-structures-22713.html.

Thread closed.
 

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