Cube Root of 8
Cube Root Calculator
What is the cube root of 8?
Answer
∛8 =
2
Real cube root: the only number whose cube is 8.
- Prime factors
- 8 = (2 × 2 × 2) = 2³
- Take out of the root
- ∛8 = ∛(2³) = 2
- Check
- 2 × 2 × 2 = 8 ✓
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See Also
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- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
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- Scientific Calculator with Memory & History - Free Engineering Calculator Online with Memory Function, Operation History, Logarithms & Trigonometry. Similar to ti-83, ti-84, ti-89
FAQ
What is the cube root of 8?
∛8 = 2
What number cubed is 8?
2, because 2 × 2 × 2 = 8. So ∛8 = 2 exactly: 8 is a perfect cube, 2³.
Is ∛8 a rational number?
Yes: ∛8 = 2, a whole number.
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