Last updated on June 2nd, 2025
When a number is multiplied by itself thrice, the resultant number is called the cube of a number. Cubing is used when comparing sizes of objects or things with cubic measurements. In this topic, we shall learn about the cube of 678.
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 678 can be written as 678³, which is the exponential form. Or it can also be written in arithmetic form as 678 × 678 × 678.
In order to check whether a number is a cube number or not, we can use the following three methods, such as the 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. 678³ = 678 × 678 × 678
Step 2: You get 311,213,352 as the answer. Hence, the cube of 678 is 311,213,352.
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 678 into two parts. Let a = 600 and b = 78, so a + b = 678
Step 2: Now, apply the formula (a + b)³ = a³ + 3a²b + 3ab² + b³
Step 3: Calculate each term
a³ = 600³
3a²b = 3 × 600² × 78
3ab² = 3 × 600 × 78²
b³ = 78³
Step 4: Add all the terms together:
(a + b)³ = a³ + 3a²b + 3ab² + b³
(600 + 78)³ = 600³ + 3 × 600² × 78 + 3 × 600 × 78² + 78³
678³ = 216,000,000 + 84,240,000 + 10,953,600 + 474,552
678³ = 311,213,352
Step 5: Hence, the cube of 678 is 311,213,352.
To find the cube of 678 using a calculator, input the number 678 and use the cube function (if available) or multiply 678 × 678 × 678. This operation calculates the value of 678³, resulting in 311,213,352. It’s a quick way to determine the cube without manual computation.
Step 1: Ensure the calculator is functioning properly.
Step 2: Press 6 followed by 7 and 8
Step 3: If the calculator has a cube function, press it to calculate 678³.
Step 4: If there is no cube function on the calculator, simply multiply 678 three times manually.
Step 5: The calculator will display 311,213,352.
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 678?
The cube of 678 is 311,213,352 and the cube root of 678 is approximately 8.773.
First, let’s find the cube of 678.
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, we get 678³ = 311,213,352
Next, we must find the cube root of 678 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, we get ∛678 ≈ 8.773
Hence the cube of 678 is 311,213,352 and the cube root of 678 is approximately 8.773.
If the side length of the cube is 678 cm, what is the volume?
The volume is 311,213,352 cm³.
Use the volume formula for a cube V = Side³.
Substitute 678 for the side length: V = 678³ = 311,213,352 cm³.
How much larger is 678³ than 500³?
678³ – 500³ = 211,213,352.
First find the cube of 678, which is 311,213,352
Next, find the cube of 500, which is 125,000,000
Now, find the difference between them using the subtraction method.
311,213,352 – 125,000,000 = 211,213,352
Therefore, 678³ is 211,213,352 larger than 500³.
If a cube with a side length of 678 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 678 cm is 311,213,352 cm³.
To find its volume, we multiply the side length by itself three times (since it’s a 3-dimensional object).
Cubing 678 means multiplying 678 by itself three times: 678 × 678 = 459,684, and then 459,684 × 678 = 311,213,352.
The unit of volume is cubic centimeters (cm³), because we are calculating the space inside the cube.
Therefore, the volume of the cube is 311,213,352 cm³.
Estimate the cube of 677.9 using the cube of 678.
The cube of 677.9 is approximately 311,213,352.
First, identify the cube of 678, The cube of 678 is 678³ = 311,213,352.
Since 677.9 is only a tiny bit less than 678, the cube of 677.9 will be almost the same as the cube of 678.
The cube of 677.9 is approximately 311,213,352 because the difference between 677.9 and 678 is very small.
So, we can approximate the value as 311,213,352.
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.