Processing math: 60%


SquareNumber Basic

Problem - 4140

Find the number of integer pairs (x,y) such that x2+y2=2019.


Answer     0

The answer is 0.

This is because 2019\equiv 3\pmod{4}. But there exists no integer solution to the relation x^2 + y^2 \equiv 3\pmod{4}.

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