Cube root of 21 (∛21)

Cube root of 21

Here we will show you the answer to the cube root of 21 in decimal form and in its simplest radical form. But before that, we start by showing you the cube root of 21 written in mathematical terms:

∛21

The √ is called the radical symbol, the little 3 is the index which means cube, and 21 is the radicand.

The cube root of 21 is a number (n) that when multiplied by itself twice will equal 21. In other words, the cube root of 21 is the number (n) in the following equation:

n × n × n = 21

∛21 is the same as 21^⅓. Therefore, to solve the problem in Excel or Numbers, you can enter 21^(1/3) to get the answer to the cube root of 21. However, we used a scientific calculator and typed in 21 and then pressed the [∛x] button. We got the following answer:

∛21 ≈ 2.7589

You can simplify the cube root of 21 if you can make the radicand smaller. This is called the cube root of 21 in its simplest radical form. The answer to the cube root 21 in its simplest form is displayed below:

∛21 = Cannot be simplified

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Cube root of 22
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