Last updated on June 3rd, 2025
When a number is multiplied by itself three times, the resultant number is called the cube of a number. Cubing is used while comparing sizes of objects or things with cubic measurements. In this topic, we shall learn about the cube of 279.
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 279 can be written as 279³, which is the exponential form.
Or it can also be written in arithmetic form as, 279 × 279 × 279.
In order to check whether a number is a cube number or not, we can use the following three methods, such as 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. 279³ = 279 × 279 × 279
Step 2: You get 21,727,239 as the answer. Hence, the cube of 279 is 21,727,239.
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 279 into two parts, as 200 and 79. Let a = 200 and b = 79, so a + b = 279
Step 2: Now, apply the formula (a + b)³ = a³ + 3a²b + 3ab² + b³
Step 3: Calculate each term a³ = 200³ 3a²b = 3 × 200² × 79 3ab² = 3 × 200 × 79² b³ = 79³
Step 4: Add all the terms together: (a + b)³ = a³ + 3a²b + 3ab² + b³ (200 + 79)³ = 200³ + 3 × 200² × 79 + 3 × 200 × 79² + 79³ 279³ = 8,000,000 + 9,480,000 + 3,748,200 + 493,039 279³ = 21,727,239
Step 5: Hence, the cube of 279 is 21,727,239.
To find the cube of 279 using a calculator, input the number 279 and use the cube function (if available) or multiply 279 × 279 × 279. This operation calculates the value of 279³, resulting in 21,727,239. It’s a quick way to determine the cube without manual computation.
Step 1: Ensure the calculator is functioning properly.
Step 2: Press 2 followed by 7 and 9
Step 3: If the calculator has a cube function, press it to calculate 279³.
Step 4: If there is no cube function on the calculator, simply multiply 279 three times manually.
Step 5: The calculator will display 21,727,239.
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 279?
The cube of 279 is 21,727,239 and the cube root of 279 is approximately 6.545.
First, let’s find the cube of 279.
We know that cube of a number, such that x³ = y
Where x is the given number, and y is the cubed value of that number
So, we get 279³ = 21,727,239
Next, we must find the cube root of 279
We know that cube root of a number ‘x’, such that ³√x = y
Where ‘x’ is the given number, and y is the cube root value of the number
So, we get ³√279 ≈ 6.545
Hence the cube of 279 is 21,727,239 and the cube root of 279 is approximately 6.545.
If the side length of the cube is 279 cm, what is the volume?
The volume is 21,727,239 cm³.
Use the volume formula for a cube V = Side³.
Substitute 279 for the side length: V = 279³ = 21,727,239 cm³.
How much larger is 279³ than 200³?
279³ – 200³ = 13,727,239.
First find the cube of 279³, that is 21,727,239
Next, find the cube of 200³, which is 8,000,000
Now, find the difference between them using the subtraction method. 21,727,239 – 8,000,000 = 13,727,239
Therefore, the 279³ is 13,727,239 larger than 200³.
If a cube with a side length of 279 cm is compared to a cube with a side length of 100 cm, how much larger is the volume of the larger cube?
The volume of the cube with a side length of 279 cm is 21,727,239 cm³
To find its volume, we multiply the side length by itself three times (since it’s a 3-dimensional object).
Cubing 279 means multiplying 279 by itself three times: 279 × 279 = 77,841, and 77,841 × 279 = 21,727,239.
The unit of volume is cubic centimeters (cm³), because we are calculating the space inside the cube.
Therefore, the volume of the cube is 21,727,239 cm³.
Estimate the cube 278.9 using the cube 279.
The cube of 278.9 is approximately 21,727,239.
First, identify the cube of 279,
The cube of 279 is 279³ = 21,727,239.
Since 278.9 is only a tiny bit less than 279, the cube of 278.9 will be almost the same as the cube of 279.
The cube of 278.9 is approximately 21,727,239 because the difference between 278.9 and 279 is very small.
So, we can approximate the value as 21,727,239.
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.