Let p be an odd prime p > 3. What is (-2/p)?

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- Nov 26th 2012, 11:49 AMhappykid12Take a look at this problem. The Quadratic Reciprocity
Let p be an odd prime p > 3. What is (-2/p)?

- Nov 26th 2012, 12:22 PMcoolgeRe: Take a look at this problem. The Quadratic Reciprocity
This is Legendre symbol. (n/p) = 1 if n is a quadratic residue mod p

= -1 if n is quadratic non-residue mod p

= if p|n

n is a quadratic residue mod p if n= x^2 mod p for some integer x. - Nov 26th 2012, 07:16 PMhappykid12Re: Take a look at this problem. The Quadratic Reciprocity
I understand that a little bit but I am having a hard time with how to start my proof.