If $N$ is a perfect square, which one of the following cannot be the r…

Question

If $N$ is a perfect square, which one of the following cannot be the remainder when $N$ is divided by 4?

Accepted Answer

D. Both 2 and 3

A perfect square is either a multiple of 4 or exceeds a multiple of 4 by 1. Therefore a square can leave only remainder 0 or 1 upon division by 4. So 2 and 3 are both impossible.

Answer

0

Answer

1

Answer

2

If $N$ is a perfect square, which one of the following cannot be the remainder when $N$ is divided by 4?

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