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Yes. Square root of 81= 9
That's the "square" of the number. With counting numbers, the square will always be another counting number.
The square root is the number which is times by itself, to get the square number.
the square root of a number is the number that is multiplied by itself to get that number, for example the square root of 9 is 3
"Natural number" means all of the ordinary counting numbers ... everywhole number starting with ' 1 ' and counting up.Every one of these natural numbers has two square roots ... one positiveand one negative. Both square roots have the same digits, and only theirsigns are different.