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March 27, 2015

Homework Help: maths

Posted by maths on Tuesday, July 2, 2013 at 6:41am.

Find the smallest n such that for any prime p, at least 20 numbers 1,2, ..., n are quadratic residues not modulo p.
k is quadratic residue modulo p if there exists an integer j such that j^2 ≡ k (mod p).

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