a square number is when you multiply two numbers the same together.
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A square number is the product of an integer multiplied by itself. For example, 9 is a square number because it can be expressed as 3 x 3. The term "square" is derived from the fact that if you draw a square with sides of length equal to the integer, the total number of squares inside the larger square will be equal to the square number.
When you multiply a number by itself, you square the number. The square of 3 is 9.
Not sure what you mean by "perfect square root".A "perfect square" is the square of a whole number; if that's what you mean, yes, it's the square of the number 1.
a number timesd itself
If by 'perfect number' you mean 'perfect SQUARE', then yes. 49 is an odd number and a perfect square.
A perfect square is a number whose square root is a whole number, such as 1, 4, 9, 16, 25, etc.