The first element in an exponentiation operation (or in raising to a power).
In the exponentiation \(b^n\), the number \(b\) is the base and the number \(n\) is the exponent.
Example
In the exponentiation 25 = 32, the number 2 is the base, the number 5 is the exponent and the number 32 is the result (called the power).