6XC

Exponent & Root Calculator

Calculate powers (aᵇ) and roots (√, ∛, any n-th root) with exact big-integer results for whole-number powers.

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Power: aᵇ

Result—

Root: ⁿ√x

Root—

Powers and Roots

aᵇ multiplies a by itself b times; the n-th root reverses it: ⁿ√x = x^(1/n). Whole-number powers are computed with big-integer arithmetic, so 2¹⁰⁰ shows all 31 digits exactly instead of scientific notation. Roots and fractional powers use precise floating point.

Frequently Asked Questions

What is a negative or zero exponent?

a⁰ = 1 for any non-zero a, and a⁻ᵇ = 1 ÷ aᵇ — so 2⁻³ = 0.125.

Can I take the root of a negative number?

Odd roots yes (∛−8 = −2); even roots of negatives have no real result — the tool flags them.

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