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Earn +20 ptsQ: Is 21 a square number itself?
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Is the number 21 composite square or prime?
21 is a composite number because it has at least one positive factor other than one or itself.
Is 21 a square number?
21 is not the square of an integer. The closest square number is 25.
What is square root of a number?
The square root is the number which is times by itself, to get the square number.
Is number 21 a square number?
no
What is a whole number that can be named as a product of a number with itself?
A perfect square is a whole number that can be named as a product of a number with itself.
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