Topic summary
Exponent

Extracted from the Wikipedia article Exponentiation.
Positive exponents
The associativity of multiplication implies that for any positive integers m and n, when multiplying exponentiation results with the same base b and exponents m and n, the product is the same base b to the power of the sum m + n of the exponents: and, when taking the result of exponentiation to another power, the base remains the same, and the exponents multiply: