Cube Root of 28
Cube Root Calculator
What is the cube root of 28?
Answer
∛28 ≈
3.0366
Real cube root: the only number whose cube is 28.
≈ — rounded to 4 decimal places. 28 is not the cube of a rational number, so ∛28 is irrational: its decimal expansion never ends and never repeats.
- Prime factors
- 28 = 2 × 2 × 7 = 2² × 7
- Take out of the root
- No prime appears three times, so ∛28 is already in simplest form.
- Between cubes
- 3³ = 27 < 28 < 64 = 4³, so 3 < ∛28 < 4 and ∛28 ≈ 3.0366
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See Also
- Square Root Calculator - Calculate the square root of any number
- Simplify Square Root Calculator - Write any square root in simplest radical form, step by step
- Prime Factorization - Prime Factorization Calculator
- Scientific Calculator with Memory & History - Free Engineering Calculator Online with Memory Function, Operation History, Logarithms & Trigonometry. Similar to ti-83, ti-84, ti-89
FAQ
What is the cube root of 28?
∛28 ≈ 3.0366
Can ∛28 be simplified?
No: no prime appears three times in 28, so its only cube factor is 1 and ∛28 is already in simplest form. Since 3³ = 27 < 28 < 64 = 4³, ∛28 lies between 3 and 4: ∛28 ≈ 3.0366.
Is ∛28 a rational number?
No: 28 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 ∛28 is irrational; its decimal never ends and never repeats: ∛28 ≈ 3.0366.
See Also
- Cube Root of 24 (∛24): Exact Value and Decimal
- Cube Root of 25 (∛25): Exact Value and Decimal
- Cube Root of 26 (∛26): Exact Value and Decimal
- Cube Root of 27 (∛27): Exact Value and Decimal
- Cube Root of 27/8 (∛(27/8)): Exact Value and Decimal
- Cube Root of 27/64 (∛(27/64)): Exact Value and Decimal
- Cube Root of 27/125 (∛(27/125)): Exact Value and Decimal
- Cube Root of 27/343 (∛(27/343)): Exact Value and Decimal
- Cube Root of 27/512 (∛(27/512)): Exact Value and Decimal
- Cube Root of 27/1000 (∛(27/1000)): Exact Value and Decimal
- Cube Root of 29 (∛29): Exact Value and Decimal
- Cube Root of 29.5 (∛29.5): Exact Value and Decimal
- Cube Root of 30 (∛30): Exact Value and Decimal
- Cube Root of 31 (∛31): Exact Value and Decimal
- Cube Root of 32 (∛32): Exact Value and Decimal
- Cube Root of 32.768 (∛32.768): Exact Value and Decimal
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- Кубический корень из 28 (∛28): точное значение
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