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Comments on Droppable Square numbers
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Droppable Square numbers Question
A number $\large X$ is defined to be a Droppable Square number if the ordinary base-10 representation of $\large X^2$ can be formed by inserting the digit $\large 2$ anywhere in the base-10 representation of $\large X$, even at the beginning or end of $\large X.$
Rearranging the digits of $\large X$ at any time is not allowed.
$\large 11$ is a Droppable Square number because $\large 11^2 \ = \ 121$ can be formed by inserting the digit $\large 2$ into the middle of $\large 11$ to form $\large 121.$
$\large 5$ is also a Droppable Square number because $\large 5^2 \ = \ 25$ can be formed by inserting the digit $\large 2$ at the beginning of $\large 5$ to form $\large 25.$
Find another Droppable Square number.
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