Exponent Calculator
An exponent tells you how many times to use a number as a factor. aⁿ means n factors of a when n is a positive integer.
Enter a power, a product of powers, or a root written as a fractional exponent.
Solve a problem
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Example problems
How this solver works
- Parse the base and exponent.
- Evaluate with a numeric engine.
- Keep exact forms when they are simple.
Formula
Product rule for exponents with the same base.
Worked examples
2^8
- 2×2 eight times
- 256
Answer: 256
Common mistakes
Adding bases
2^3 + 2^3 is not 2^6. Add the values, or factor: 2×2^3.
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Frequently asked questions
What is a negative exponent?
a^(−n) = 1/a^n for a ≠ 0.