Exponentiation is one of the mathematical operations that replace multiple multiplications between equal numbers or variables, simplifying both writing and processing. If the exponent is greater than 1, the power is the product of as many factors as are indicated by the number of the exponent, all equal to the base. From this statement it is clear that the exponent must be at least greater than or equal to 2, to ensure that there is at least one multiplication, that is, two factors.