A natural number whose cube is 6 is called the cube root of 6. The cube root of 6 is equal to 1.817 approximately. The opposite of cubing an integer is to find its cube root. The radicals “√” and “∛” respectively, stand for the square root and cube root. The number 61/3 serves as an exponential representation of the cube root of 6. Let’s examine various methods for determining the cube root of 6.
Cube Root of 6 |
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Cube of 6 | 216 |
Also, read:How to Find Cube Root?
What is the Cube Root of 6?
The number whose cube is 6 is the cube root of 6. An integer’s cube always results in a perfect cube. 6 is not a perfect cube number since it is not the cube of any integer. Six is a composite number as well. This article provides a full explanation of how to calculate the cube root of 6.
Also, try out:Cube Root Calculator.
How to Find the Cube Root of 6?
Now let’s calculate the cube root of 6. We’ll examine it from a number of approaches in this article.
Finding Cube Root of 6 by Prime Factorisation Method
The steps to get the cube root of an integer using the prime factorization method are listed below.
- Find the number’s prime factors.
- For every prime factor in the prime factorization, make a group of three.
- A single occurrence of the factor is chosen on every group, and then all the prime factors are multiplied. If a factor cannot be divided into three, it cannot be further simplified.
Applying the prime factorization technique, let’s calculate the cube root of 6.
As we know, the prime factorisation of 6 is 2 × 3.
As a result, the cube root of 6 in radical form is:
∛6 = ∛(2 × 3).
Since ∛6 cannot be further reduced, its cube root is an irrational number as well.
Finding Cube Root of 6 by Approximation Method
The cube root of any number may be obtained using Halley’s technique, which is sometimes referred to as an approximation method. The cube root of 6 can be calculated using Halley’s method as shown below:
Halley’s Cube Root Formula:
Where
The letter “a” stands in for the required cube root computation.
Take the cube root of the nearest perfect cube, “x,” to get the projected value.
Here, a = 6
13 = 1 < 6, will be obtained, if x = 1.
The cube root of 6 is computed using Halley’s formula, and the outcomes are quite similar.
∛6 = 1[(13 + 2 × 6)/(2 × 13 + 6)]
∛6 = 1[(1 + 12)/(2 + 6)]
∛6 = 1[13/8]
∛6 = 1[1.625] ≈ 1.625, which is close to 6’s cube root.
Using Halley’s formula, we can determine that 1.625 is the cube root of 6.
Video Lesson on Finding Cube Roots
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Solved Examples on Cube Root of 6
Example 1:
Find x’s value, if ∛6x = 9(1.817).
Solution:
Equation given: ∛6x = 9(1.817).
We already know that 1.817 is almost equivalent to the cube root of 6.
If the value ∛6 = 1.817 is substituted into the equation above, the result is,
1.817 x = 9(1.817)
⇒ x = [9(1.817)] /1.817
⇒ x = 9
Therefore, x equals 9.
Example 2:
Determine the smallest integer that, when multiplied by 6, generates a perfect cube number
Solution:
As it is well known, 2 × 3 is the prime factorization of 6.
To get the cube root of 6, each factor must be grouped by three. As a result, we must multiply 6 by 2 × 2 × 3 × 3.
This gives us,
6 × 2 × 2 × 3 × 3 = 6 × 4 × 9 = 6 × 36 = 216
Hence, the number 216 is a perfect cube number.
As a result, the cube root of 216 is ∛(2 × 2 × 2 × 3 × 3 × 3 ) = 2 × 3 = 6
Hence, the smallest number that may be multiplied by 6 to obtain the perfect cube number is 36.
Example 3:
Determine the dimensions of the sides of a cube with a 6 cm3 volume.
Solution:
Assuming “a” represents the cube’s side length.
This indicates that a3 = 6 cm3 is the cube’s volume.
By computing the cube roots on both sides of the equation, we arrive at
a = ∛6 = 1.817 (approximately).
The value of “a” is thus around 1.817.
Frequently Asked Questions on Cube Root of 6
What is the result of the cube root of 6?
The number 6 has a cube root value of around 1.817.
Is the number 6 a perfect cube?
It is not a perfect cube since 6 cannot be expressed as the cube of any number.
What is the cube root of -6?
The cube root of -6 is roughly comparable to -1.817.
According to this, ∛-6 = -∛6 = -1.817.
What happens when you add four and the cube root of 6?
5.817 is the result of adding four to the cube root of 6.
We are aware that ∛6 = 1.817.
So, 4 + 1.817 = 5.817.
What is the simplest radical expression of 6’s cube root?
The cube root of 6 is represented by the simplest radical, ∛6