# Math Help - Quadratic Residues

1. ## Quadratic Residues

Let p be a prime number with p = 1 mod 4. Prove that

the summation of (a/p), a is from 1 to (p-1)/2, is equal to 0.

2. ## Re: Quadratic Residues

Originally Posted by babygill
Let p be a prime number with p = 1 mod 4. Prove that

the summation of (a/p), a is from 1 to (p-1)/2, is equal to 0.
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-Dan

3. ## Re: Quadratic Residues

the problem is I have no idea where to start