Cube of 18
18 cubed equals 5832. Cubes show up in volume calculations — a cube with side 18 holds 5832 cubic units.
Cubes carry the fingerprint of their base. The final digit of 5832 is 2 — always the cube of the base's own final digit. Divided by 9, a cube only ever leaves 0, 1 or 8, and 5832 leaves 0. The volume picture explains the name: a 18 × 18 floor of unit cubes holds 324 of them, and 18 such layers stack to 5832 — the shape itself is the exponent at work. The gaps grow like a parabola: 5832 − 4913 = 919, which is 3 × 18 × 17 + 1 — each new layer wider than the last. Even base, even cube: 5832 keeps the parity of 18.
| Expression | Value |
|---|---|
| 18³ | 5832 |
Frequently asked questions
What is 18 cubed?
18 cubed is 5832, because 18 × 18 × 18 = 5832. The exponent 3 gives it the name "cube".
Why is it called a cube number?
Because it matches volume: a cube with side length 18 contains exactly 5832 unit cubes.
Is 5832 a perfect cube?
Yes — 5832 = 18³, so it is a perfect cube by definition.