
Here we will show you step-by-step how to simplify the cube root of 729. Before we continue, note that the cube root of 729 can be written as follows:
∛729
The ∛ symbol is called the radical sign. To simplify the cube root of 729 means to get the simplest radical form of ∛729.
We start by listing the factors of 729 like so:
1, 3, 9, 27, 81, 243, and 729
Next, we identify the perfect cubes* from the list of factors above:
1, 27, and 729
Since 729 is on the list of perfect cubes above, it means that 729 is a perfect cube. 729 is a perfect cube because 9 times 9 times 9 equals 729.
That also means that you can simplify the cube root of 729 without the radical as follows:
∛729 = 9
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* List of Perfect Cubes
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