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What is the cube root of 1,372?

Answer

∛1,372 =
7∛4 ≈ 11.1118

Real cube root: the only number whose cube is 1,372.

≈ — rounded to 4 decimal places. 1,372 is not the cube of a rational number, so ∛1,372 is irrational: its decimal expansion never ends and never repeats.

Prime factors
1,372 = 2 × 2 × (7 × 7 × 7) = 2² × 7³
Take out of the root
∛1,372 = ∛(7³ × 4) = 7∛4
Between cubes
11³ = 1,331 < 1,372 < 1,728 = 12³, so 11 < ∛1,372 < 12 and ∛1,372 ≈ 11.1118

See Also

FAQ

What is the cube root of 1,372?

∛1,372 = 7∛4 ≈ 11.1118

How to simplify ∛1,372?

Factor 1,372 into primes: 1,372 = 2 × 2 × 7 × 7 × 7. Each triple of equal factors is a cube and comes out of the root as one factor; the rest stays under it: ∛1,372 = ∛(7³ × 4) = 7∛4.

Is ∛1,372 a rational number?

No: 1,372 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 ∛1,372 is irrational; its decimal never ends and never repeats: ∛1,372 ≈ 11.1118.