It's called a square number, or simply a square.
The name comes from the fact that the sides of a geometric square are equal in length so its area is simply the length of one side times itself.
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When you raise a number to any power x, you multiply it by itself x times. Because 1 times anything is itself, multiplying 1 by itself any number of times will still give you 1.
Any number times itself is a square number.
Any real number times itself.
No number times itself can give the result of -144 .Any number has the same sign as itself has, and whenever you multiplytwo numbers that have the same sign, the result is a positive number.
Any number times 1 is the number itself.