Cube Root of 729

Cube Root Calculator
Cube root of

What is the cube root of 729?

Answer

∛729 =
9

Real cube root: the only number whose cube is 729.

Prime factors
729 = (3 × 3 × 3) × (3 × 3 × 3) = 3⁶
Take out of the root
∛729 = ∛((3³)²) = 3² = 9
Check
9 × 9 × 9 = 729 ✓

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Recalculate with different values ↑

Cube roots of nearby values

N∛N
6255∛5 ≈ 8.5499
6867∛2 ≈ 8.8194
700≈ 8.879
7299
730≈ 9.0041
7684∛12 ≈ 9.1577
8646∛4 ≈ 9.5244

FAQ

What is the cube root of 729?

∛729 = 9

What number cubed is 729?

9, because 9 × 9 × 9 = 729. So ∛729 = 9 exactly: 729 is a perfect cube, 9³.

Is ∛729 a rational number?

Yes: ∛729 = 9, a whole number.

See Also