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Math Help - Law of quadratic reciprocity1

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    Law of quadratic reciprocity1

    Let p and q be odd prime numbers with p=4q+1. Prove that (q over p) =1 where (q over p) denotes the legendre symbol.
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    Quote Originally Posted by mndi1105 View Post
    Let p and q be odd prime numbers with p=4q+1. Prove that (q over p) =1 where (q over p) denotes the legendre symbol.
    Since p\equiv 1(\bmod 4) it means (p/q)=(q/p).
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