Square number.
that number to the fourth power.
The square of the number
Its the product
It'd be the product squared, since you're multiplying it by itself. the product of a number multiplied by itself is called an Exponent, Power or Square Number
Square root
The identity element.
The number one is only multiplied by itself.
The number raised to the fourth power
The product is a perfect square.
A Factor
they are called factors
a factor