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    Cube Root of 28

    Cube Root Calculator
    Cube root of

    What is the cube root of 28?

    Answer

    ∛28 ≈
    3.0366

    Real cube root: the only number whose cube is 28.

    ≈ — rounded to 4 decimal places. 28 is not the cube of a rational number, so ∛28 is irrational: its decimal expansion never ends and never repeats.

    Prime factors
    28 = 2 × 2 × 7 = 2² × 7
    Take out of the root
    No prime appears three times, so ∛28 is already in simplest form.
    Between cubes
    3³ = 27 < 28 < 64 = 4³, so 3 < ∛28 < 4 and ∛28 ≈ 3.0366

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    https://calculat.io/en/number/cube-root/28Copy
    <a href="https://calculat.io/en/number/cube-root/28">Cube Root of 28 (∛28): Exact Value and Decimal - Calculatio</a>Copy
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    Cube Root of 28 (∛28): Exact Value and Decimal. ∛28 ≈ 3.0366. 28 has no cube factor but 1, so ∛28 is already simplest; it lies between 3 and 4.
    https://calculat.io/en/number/cube-root/28/generated.jpgCopy

    Cube roots of nearby values

    N∛N
    25≈ 2.924
    26≈ 2.9625
    273
    28≈ 3.0366
    29≈ 3.0723
    29.5≈ 3.0899
    30≈ 3.1072
    Recalculate with different values ↑

    FAQ

    What is the cube root of 28?

    ∛28 ≈ 3.0366

    Can ∛28 be simplified?

    No: no prime appears three times in 28, so its only cube factor is 1 and ∛28 is already in simplest form. Since 3³ = 27 < 28 < 64 = 4³, ∛28 lies between 3 and 4: ∛28 ≈ 3.0366.

    Is ∛28 a rational number?

    No: 28 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 ∛28 is irrational; its decimal never ends and never repeats: ∛28 ≈ 3.0366.

    See Also