Cube Root of 111

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What is the cube root of 111?

Answer

∛111 ≈
4.8059

Real cube root: the only number whose cube is 111.

≈ — rounded to 4 decimal places. 111 is not the cube of a rational number, so ∛111 is irrational: its decimal expansion never ends and never repeats.

Prime factors
111 = 3 × 37
Take out of the root
No prime appears three times, so ∛111 is already in simplest form.
Between cubes
4³ = 64 < 111 < 125 = 5³, so 4 < ∛111 < 5 and ∛111 ≈ 4.8059

See Also

FAQ

What is the cube root of 111?

∛111 ≈ 4.8059

Can ∛111 be simplified?

No: no prime appears three times in 111, so its only cube factor is 1 and ∛111 is already in simplest form. Since 4³ = 64 < 111 < 125 = 5³, ∛111 lies between 4 and 5: ∛111 ≈ 4.8059.

Is ∛111 a rational number?

No: 111 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 ∛111 is irrational; its decimal never ends and never repeats: ∛111 ≈ 4.8059.