How to find cube root by division method

Calculator Use

Use this calculator to find the cube root of positive or negative numbers. Given a number x, the cube root of x is a number a such that a³ = x.

If x is positive a will be positive.

Cube root of 3

If x is negative a will be negative. The Cube Root Calculator is a specialized form of our common Radicals Calculator.

Example Cube Roots

• The 3rd root of 64, or 64 radical 3, or the cube root of 64 is written as \( \sqrt[3]{64} = 4 \).
• The 3rd root of -64, or -64 radical 3, or the cube root of -64 is written as \( \sqrt[3]{-64} = -4 \).
• The cube root of 8 is written as \( \sqrt[3]{8} = 2 \).
• The cube root of 10 is written as \( \sqrt[3]{10} = 2.154435 \).

What is a Cube Root as an Exponent?

The cube root of x is the same as x raised to the 1/3 power.

This is written as \( \sqrt[3]{x} = x^{\frac{1}{3}} \).

What is a Cube Root of a Negative Number?

The common definition of the cube root of a negative number is:
(-x)^1/3 = -(x^1/3)

First take the cube root of the number and then make it negative.

Example Cube Roots of Negativ

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