Is $4$ a perfect square?

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Solution

Checking if $4$ is a perfect square
A perfect square is a number, from a given number system, that can be expressed as the square of a number from the same number system
$\Rightarrow 4$ can be written as $= 2 \times 2$
Therefore, $4$ is a perfect square obtained by as the square of $2$ .
Thus, $4$ is a perfect square.

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Smallest 4 digit perfect square	$100$

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Is 4 a perfect square?

Checking if 4 is a perfect squareA perfect square is a number, from a given number system, that can be expressed as the square of a number from the same number system⇒4 can be written as =2×2Therefore, 4 is a perfect square obtained by as the square of 2.Thus, 4 is a perfect square.

Is $4$ a perfect square?