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    Cube Root of 129

    Cube Root Calculator
    Cube root of

    What is the cube root of 129?

    Answer

    ∛129 ≈
    5.0528

    Real cube root: the only number whose cube is 129.

    ≈ — rounded to 4 decimal places. 129 is not the cube of a rational number, so ∛129 is irrational: its decimal expansion never ends and never repeats.

    Prime factors
    129 = 3 × 43
    Take out of the root
    No prime appears three times, so ∛129 is already in simplest form.
    Between cubes
    5³ = 125 < 129 < 216 = 6³, so 5 < ∛129 < 6 and ∛129 ≈ 5.0528

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    https://calculat.io/en/number/cube-root/129Copy
    <a href="https://calculat.io/en/number/cube-root/129">Cube Root of 129 (∛129): Exact Value and Decimal</a>Copy
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    Cube Root of 129 (∛129): Exact Value and Decimal. ∛129 ≈ 5.0528. 129 has no cube factor but 1, so ∛129 is already simplest; it lies between 5 and 6.
    https://calculat.io/en/number/cube-root/129/generated.jpgCopy

    Cube roots of nearby values

    N∛N
    126≈ 5.0133
    127≈ 5.0265
    1284∛2 ≈ 5.0397
    129≈ 5.0528
    131≈ 5.0788
    132≈ 5.0916
    1353∛5 ≈ 5.1299
    Recalculate with different values ↑

    FAQ

    What is the cube root of 129?

    ∛129 ≈ 5.0528

    Can ∛129 be simplified?

    No: no prime appears three times in 129, so its only cube factor is 1 and ∛129 is already in simplest form. Since 5³ = 125 < 129 < 216 = 6³, ∛129 lies between 5 and 6: ∛129 ≈ 5.0528.

    Is ∛129 a rational number?

    No: 129 is not the cube of a rational number, and the cube root of a fraction p/q in lowest terms is rational only when p and q are both cubes. So ∛129 is irrational; its decimal never ends and never repeats: ∛129 ≈ 5.0528.

    See Also