Cube Number
The result of multiplying an integer by the same integer three times is known as a cube number. Perfect cubes are another name for cube numbers. As a result, a cube number is a number with the exponential power of three, or a number multiplied three times.
In geometry, the volume of a cube is equal to its length, width, and height. The cube’s length, breadth, and height are all the same because it’s a cube. As a result, the cube’s volume equals a3, where a denotes the length, height, and width of the cube. This denotes that the volume of a cube is a cube number.
Cube Root:
The cube root of a number is written by ∛ and is the inverse of the cube of a number. In the same way, 5 is known as the cube root of the number 125.
When we hear the words cube and root, the first image that comes to mind is of an actual cube and tree roots. Isn’t that correct? It’s a similar concept, to be sure. The root refers to the original source or origin. All we have to do now is think about “which number’s cube should be chosen to obtain the specified number.” The definition of cube root in mathematics is as follows:
Cube root is the number that must be multiplied three times to obtain the original number. Now consider the cube root formula, in which y is the cube root of x and ∛x = y.
With a little 3 inscribed on the top left of the sign, the radical sign ∛ is employed as a cube root symbol for any number.
The inverse of the cube of a number is the cube root.
How to find the cube root of a number?
To find the cube root, start by establishing the prime factorization of the given number. Then, divide the components into three groups of three elements each. After that, erase the cube root symbol and multiply the factors to get the answer.
- The formula for Cube Roots
To find the cube root of any number expressed in radical form with the sign∛, use the cube root formula. After identifying the prime factorization of the given number, it can be calculated using the cube root formula. Assume that x is any number such that x = y × y × y.
The cube root is calculated using the following formula:
Cube root of given number x = ∛x = ∛(y × y × y) = y
where,
Any number x has a cube root y.
- Cube of numbers 1-30:
1³ = 1
2³ = 8
3³ = 27
4³ = 64
5³ = 125
6³ = 216
7³ = 343
8³ = 512
9³ = 729
10³ = 1000
11³ = 1331
12³ = 1728
13³ = 2197
14³ = 2744
15³ = 3375
16³ = 4096
17³ = 4913
18³ = 5832
19³ = 6859
20³ = 8000
21³ = 9261
22³ = 10648
23³ = 12167
24³ = 13824
25³ = 15625
26³ = 17576
27³ = 19683
28³ = 21952
29³ = 24389
30³ = 27000
- Cube root of numbers 1-30
∛1 = 1
∛2 = 1.2599
∛3 = 1.4422
∛4 = 1.5874
∛5 = 1.7099
∛6 = 1.8171
∛7 = 1.9129
∛8 = 2
∛9 = 2.08
∛10 = 2.1544
∛11 = 2.2239
∛12 = 2.2894
∛13 = 2.3513
∛14 = 2.4101
∛15 = 2.4662
∛16 = 2.5198
∛17 = 2.5712
∛18 = 2.6207
∛19 = 2.6684
∛20 = 2.7144
∛21 = 2.7589
∛22 = 2.802
∛23 = 2.8438
∛24 = 2.8844
∛25 = 2.924
∛26 = 2.9624
∛27 = 3
∛28 = 3.0365
∛29 = 3.0723
∛30 = 3.1072
Conclusion:
A number’s cube root is a value that, when multiplied by itself three times, returns the original value. For example, the cube root of 27, written as ∛27, is 3, because we get 3 x 3 x 3 = 27 = 33 when we multiply 3 by itself three times. As a result, we can argue that the cube root returns a value that is essentially cubed. 27 is stated to be a perfect cube in this context. We can deduce what the cube’s root is from the word “cube root.” It denotes which number resulted in the presence of a cube beneath the root. The prime factorization method is commonly used to obtain the cubic root of perfect cubes.