Prouve that number is not prime number : (x is whole number no zero ) .
Last edited by dhiab; June 6th 2009 at 11:34 AM.
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is that the entire question? i feel there is something missing here...
prove that this is not a prime.
2 to the power of 2x +1 + 1 would equal
2 to the power 3 +1
8 + 1 = 9 which is not a prime
Hello, dhiab! Prove that is not a prime number, for any positive integer is always factorable. . .
Therefore, is always a multiple of 3.
[quote=Soroban;326807]Hello, dhiab! is always factorable. . . Therefore, is always a multiple of 3.
[/quote Thank you for this resolution ?This my resolution (Theorem of induction) I prouve that : : - for : I have . -Now . I PROUVE FOR :
He3llo, again, dhiab! This is my resolution (induction)
I prove that: .
For , I have: .
Prove for :
Your inductive proof is correct!
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