Laws of Exponents Calculator
Combine same-base powers using the product, quotient, and power-of-a-power rules to get a simplified exponent and its numeric value.
Operation
Combined exponent after applying the law
- 1
Exponent m
3 - 2
Exponent n
2 - 3
Combined exponent (product rule bᵐ × bⁿ = bᵐ⁺ⁿ)
m + n = 3 + 2 = 5
How does this calculator work?
To combine same-base powers, keep the base and operate on the exponents: multiplying adds them, dividing subtracts them, and raising a power to a power multiplies them. Enter the base, both exponents, and an operation to get the simplified exponent plus the exact numeric value of the result.
Formula
How this is calculated
Enter the common base b and the two exponents m and n, then choose an operation. All three exponent laws require the powers to share the same base b, which is why only one base field is provided.
Multiplying same-base powers adds the exponents (bᵐ × bⁿ = bᵐ⁺ⁿ), dividing subtracts them (bᵐ ÷ bⁿ = bᵐ⁻ⁿ), and raising a power to a power multiplies them ((bᵐ)ⁿ = bᵐ×ⁿ). The calculator computes the resulting exponent and then evaluates the numeric value b raised to that exponent.
Exponents may be negative or fractional: a negative exponent represents a reciprocal and a fractional exponent represents a root. Edge cases such as a zero or negative base combined with a fractional exponent can produce a non-real or undefined result, in which case no value is shown.
Frequently asked questions
The product, quotient, and power-of-a-power rules only apply when both powers share the same base. With different bases you cannot simply add or subtract the exponents.
Yes. Negative exponents give reciprocals (b⁻ⁿ = 1/bⁿ) and fractional exponents give roots (b^(1/2) = √b). The same addition, subtraction, and multiplication rules still apply.
The quotient rule yields b⁰, and any non-zero base raised to the zero power equals 1.
Also known as
TG we-Calculate Editorial Team. (2026). Laws of Exponents Calculator [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/laws-of-exponents-calculator
TG we-Calculate Editorial Team. "Laws of Exponents Calculator." TG we-Calculate. 2026. https://we-calculate.com/calculator/laws-of-exponents-calculator.
TG we-Calculate Editorial Team, "Laws of Exponents Calculator," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/laws-of-exponents-calculator
@misc{wecalculate_laws_of_exponents_calculator, title = {Laws of Exponents Calculator}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/laws-of-exponents-calculator}}, year = {2026}, note = {TG we-Calculate} }
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