Cube Root of 172

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Cube root of

What is the cube root of 172?

Answer

∛172 ≈
5.5613

Real cube root: the only number whose cube is 172.

≈ — rounded to 4 decimal places. 172 is not the cube of a rational number, so ∛172 is irrational: its decimal expansion never ends and never repeats.

Prime factors
172 = 2 × 2 × 43 = 2² × 43
Take out of the root
No prime appears three times, so ∛172 is already in simplest form.
Between cubes
5³ = 125 < 172 < 216 = 6³, so 5 < ∛172 < 6 and ∛172 ≈ 5.5613

See Also

FAQ

What is the cube root of 172?

∛172 ≈ 5.5613

Can ∛172 be simplified?

No: no prime appears three times in 172, so its only cube factor is 1 and ∛172 is already in simplest form. Since 5³ = 125 < 172 < 216 = 6³, ∛172 lies between 5 and 6: ∛172 ≈ 5.5613.

Is ∛172 a rational number?

No: 172 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 ∛172 is irrational; its decimal never ends and never repeats: ∛172 ≈ 5.5613.