Question

State true or false:

The number 22222 is a perfect square.

• A. True
• B. False

Answer 1

The correct option is B False

No, $22222$ is not a perfect square.

It is because a perfect square always ends with $1$, $4$, $5$, $6$ or $9$, or has even number of zeros.

For example,
$1^2=1$
${12}^2=144$
${13}^2=169$
$5^2=25$

${20}^2=400$

Here, the number ends with $2$.
Therefore, it is not a perfect square.

Hence, the given statement is true.