Cube Root of 24389 = 29.0000
Quick Answer
∛24389 = 29.0000
Because 293 = 29 × 29 × 29 = 24389
Cube Root Calculator
Use the calculator above to find the cube root of any real number (positive, negative, or decimal). See below the step-by-step method using Newton's iteration, plus a table of common perfect cubes.
24389 Is a Perfect Cube
∛24389 = 29 because 293 = 29 × 29 × 29 = 24389
Formula
The cube root of a number a is the value x such that:
x3 = a ⇔ ∛a = x
Every real number has exactly one real cube root. Unlike the square root, the cube root is defined for negative inputs: ∛(−a) = −∛a.
How to Calculate Cube Roots
For perfect cubes (8, 27, 64, 125, …) the cube root is an integer — just recall the cube of small integers.
For other numbers, use Newton's Method:
- Start with a rough estimate (e.g. x0 = a / 3).
- Apply xn+1 = (2xn + a/xn2) / 3.
- Repeat 3–4 times — the value converges fast (each step roughly doubles the digits of precision).
Nearby Cube Roots
Perfect Cube Roots Table
Common perfect cubes from 1 to 1000. For the full table 1–100, see our cube root chart 1 to 1000.
| n | ∛n |
|---|---|
| 1 | 1 |
| 8 | 2 |
| 27 | 3 |
| 64 | 4 |
| 125 | 5 |
| 216 | 6 |
| 343 | 7 |
| 512 | 8 |
| 729 | 9 |
| 1000 | 10 |
Inverse Operation: Cubing
Since ∛24389 = 29, the inverse operation is cubing: 293 = 24389.
See our Cubed Calculator for more details on this and related cubed values.
Want the Simplified Radical Form?
The decimal value above is useful for measurements, but in algebra problems you often need the simplified radical form. Try our Simplify Cube Root Calculator to see ∛24389 in simplest form (e.g. 2∛3 instead of 29.0000).
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Related Calculators
- Simplify Cube Root — radical form (e.g. ∛24 = 2∛3)
- Cube (n3) Calculator — the inverse operation
- Is 24389 a Perfect Cube? — verdict + proof
- Square Root Calculator — decimal square root