Posted by
**maths** on
.

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).

Wednesday

March 29, 2017
Posted by
**maths** on
.

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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