Cube Root of 76

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Cube root of

What is the cube root of 76?

Answer

∛76 ≈
4.2358

Real cube root: the only number whose cube is 76.

≈ — rounded to 4 decimal places. 76 is not the cube of a rational number, so ∛76 is irrational: its decimal expansion never ends and never repeats.

Prime factors
76 = 2 × 2 × 19 = 2² × 19
Take out of the root
No prime appears three times, so ∛76 is already in simplest form.
Between cubes
4³ = 64 < 76 < 125 = 5³, so 4 < ∛76 < 5 and ∛76 ≈ 4.2358

See Also

FAQ

What is the cube root of 76?

∛76 ≈ 4.2358

Can ∛76 be simplified?

No: no prime appears three times in 76, so its only cube factor is 1 and ∛76 is already in simplest form. Since 4³ = 64 < 76 < 125 = 5³, ∛76 lies between 4 and 5: ∛76 ≈ 4.2358.

Is ∛76 a rational number?

No: 76 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 ∛76 is irrational; its decimal never ends and never repeats: ∛76 ≈ 4.2358.