Last updated on June 3rd, 2025
When a number is multiplied by itself thrice, the resultant number is called the cube of a number. Cubing is used when comparing the sizes of objects or things with cubic measurements. In this topic, we shall learn about the cube of 139.
A cube number is a value obtained by raising a number to the power of 3, or by multiplying the number by itself three times.
When you cube a positive number, the result is always positive.
When you cube a negative number, the result is always negative.
This is because a negative number by itself three times results in a negative number.
The cube of 139 can be written as 139³, which is the exponential form.
Or it can also be written in arithmetic form as, 139 × 139 × 139.
In order to check whether a number is a cube number or not, we can use the following three methods: multiplication method, a factor formula (a³), or by using a calculator. These three methods will help kids to cube the numbers faster and easier without feeling confused or stuck while evaluating the answers.
The multiplication method is a process in mathematics used to find the product of two numbers or quantities by combining them through repeated addition. It is a fundamental operation that forms the basis for more complex mathematical concepts.
Step 1: Write down the cube of the given number. 139³ = 139 × 139 × 139
Step 2: You get 2,682,019 as the answer. Hence, the cube of 139 is 2,682,019.
The formula (a + b)³ is a binomial formula for finding the cube of a number. The formula is expanded as a³ + 3a²b + 3ab² + b³.
Step 1: Split the number 139 into two parts, as 130 and 9. Let a = 130 and b = 9, so a + b = 139.
Step 2: Now, apply the formula (a + b)³ = a³ + 3a²b + 3ab² + b³.
Step 3: Calculate each term. a³ = 130³ 3a²b = 3 × 130² × 9 3ab² = 3 × 130 × 9² b³ = 9³
Step 4: Add all the terms together: (a + b)³ = a³ + 3a²b + 3ab² + b³ (130 + 9)³ = 130³ + 3 × 130² × 9 + 3 × 130 × 9² + 9³ 139³ = 2,197,000 + 456,300 + 140,940 + 729 139³ = 2,682,019
Step 5: Hence, the cube of 139 is 2,682,019.
To find the cube of 139 using a calculator, input the number 139 and use the cube function (if available) or multiply 139 × 139 × 139. This operation calculates the value of 139³, resulting in 2,682,019. It’s a quick way to determine the cube without manual computation.
Step 1: Ensure the calculator is functioning properly.
Step 2: Press 1 followed by 3 and 9.
Step 3: If the calculator has a cube function, press it to calculate 139³.
Step 4: If there is no cube function on the calculator, simply multiply 139 by itself three times manually.
Step 5: The calculator will display 2,682,019.
There are some typical errors that kids might make during the process of cubing a number. Let us take a look at five of the major mistakes that kids might make:
What is the cube and cube root of 139?
The cube of 139 is 2,682,019, and the cube root of 139 is approximately 5.162.
First, let’s find the cube of 139.
We know that the cube of a number, such that x³ = y, where x is the given number, and y is the cubed value of that number.
So, 139³ = 2,682,019.
Next, we must find the cube root of 139.
We know that the cube root of a number x, such that ∛x = y, where x is the given number, and y is the cube root value of the number.
So, ∛139 ≈ 5.162.
Hence, the cube of 139 is 2,682,019, and the cube root of 139 is approximately 5.162.
If the side length of the cube is 139 cm, what is the volume?
The volume is 2,682,019 cm³.
Use the volume formula for a cube V = Side³.
Substitute 139 for the side length: V = 139³ = 2,682,019 cm³.
How much larger is 139³ than 129³?
139³ – 129³ = 932,639.
First, find the cube of 139, which is 2,682,019.
Next, find the cube of 129, which is 1,749,380.
Now, find the difference between them using the subtraction method. 2,682,019 – 1,749,380 = 932,639.
Therefore, 139³ is 932,639 larger than 129³.
If a cube with a side length of 139 cm is compared to a cube with a side length of 39 cm, how much larger is the volume of the larger cube?
The volume of the cube with a side length of 139 cm is 2,682,019 cm³.
To find its volume, we multiply the side length by itself three times (since it’s a 3-dimensional object).
Cubing 139 means multiplying 139 by itself three times: 139 × 139 = 19,321, and then 19,321 × 139 = 2,682,019.
The unit of volume is cubic centimeters (cm³), because we are calculating the space inside the cube.
Therefore, the volume of the cube is 2,682,019 cm³.
Estimate the cube of 138.9 using the cube of 139.
The cube of 138.9 is approximately 2,682,019.
First, identify the cube of 139,
The cube of 139 is 139³ = 2,682,019.
Since 138.9 is only a tiny bit less than 139, the cube of 138.9 will be almost the same as the cube of 139.
The cube of 138.9 is approximately 2,682,019 because the difference between 138.9 and 139 is very small.
So, we can approximate the value as 2,682,019.
Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.
: He loves to play the quiz with kids through algebra to make kids love it.