What is the cube root of 21?

Here we will explain and calculate the cube root of 21. First, note that the cube root of 21 can be written with a mathematical symbol, like this:

∛21

When we calculate the cube root of 21, the answer is the number (n) that you can multiply by itself twice that will equal 21. In other words, n × n × n should equal 21. Therefore, the equation to solve the problem is as follows:

n³ = 21

And when we solve the equation above, we get the answer to the cube root of 21:

∛21 ≈ 2.75892417638112

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