Last updated on July 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 1385.
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 multiplied by itself three times results in a negative number.
The cube of 1385 can be written as 1385³, which is the exponential form.
Or it can also be written in arithmetic form as, 1385 × 1385 × 1385.
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 cube the numbers faster and easier without feeling confused or stuck while evaluating the answers.
By Multiplication Method Using a Formula Using a Calculator
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. 1385³ = 1385 × 1385 × 1385
Step 2: You get 2,654,458,625 as the answer. Hence, the cube of 1385 is 2,654,458,625.
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 1385 into two parts, as 1300 and 85. Let a = 1300 and b = 85, so a + b = 1385
Step 2: Now, apply the formula (a + b)³ = a³ + 3a²b + 3ab² + b³
Step 3: Calculate each term a³ = 1300³ 3a²b = 3 × 1300² × 85 3ab² = 3 × 1300 × 85² b³ = 85³
Step 4: Add all the terms together: (a + b)³ = a³ + 3a²b + 3ab² + b³ (1300 + 85)³ = 1300³ + 3 × 1300² × 85 + 3 × 1300 × 85² + 85³ 1385³ = 2,197,000,000 + 429,750,000 + 28,072,500 + 614,125 1385³ = 2,654,458,625
Step 5: Hence, the cube of 1385 is 2,654,458,625.
To find the cube of 1385 using a calculator, input the number 1385 and use the cube function (if available) or multiply 1385 × 1385 × 1385.
This operation calculates the value of 1385³, resulting in 2,654,458,625. It’s a quick way to determine the cube without manual computation.
Step 1: Ensure the calculator is functioning properly.
Step 2: Press 1, 3, 8, 5
Step 3: If the calculator has a cube function, press it to calculate 1385³.
Step 4: If there is no cube function on the calculator, simply multiply 1385 three times manually.
Step 5: The calculator will display 2,654,458,625.
The cube of any even number is always even, while the cube of any odd number is always odd.
The product of two or more perfect cube numbers is always a perfect cube.
A perfect cube can always be expressed as the product of three identical groups of equal prime factors.
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 1385?
The cube of 1385 is 2,654,458,625 and the cube root of 1385 is approximately 11.082.
First, let’s find the cube of 1385. 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 1385³ = 2,654,458,625
Next, we must find the cube root of 1385 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 ∛1385 ≈ 11.082
Hence, the cube of 1385 is 2,654,458,625 and the cube root of 1385 is approximately 11.082.
If the side length of the cube is 1385 cm, what is the volume?
The volume is 2,654,458,625 cm³.
Use the volume formula for a cube V = Side³. Substitute 1385 for the side length: V = 1385³ = 2,654,458,625 cm³.
How much larger is 1385³ than 1285³?
1385³ – 1285³ = 806,986,375.
First, find the cube of 1385³, which is 2,654,458,625 Next, find the cube of 1285³, which is 1,847,472,250
Now, find the difference between them using the subtraction method. 2,654,458,625 – 1,847,472,250 = 806,986,375
Therefore, 1385³ is 806,986,375 larger than 1285³.
If a cube with a side length of 1385 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 1385 cm is 2,654,458,625 cm³.
To find its volume, we multiply the side length by itself three times (since it’s a 3-dimensional object).
Cubing 1385 means multiplying 1385 by itself three times: 1385 × 1385 = 1,918,225, and then 1,918,225 × 1385 = 2,654,458,625.
The unit of volume is cubic centimeters (cm³), because we are calculating the space inside the cube.
Therefore, the volume of the cube is 2,654,458,625 cm³.
Estimate the cube of 1384 using the cube of 1385.
The cube of 1384 is approximately 2,654,458,625.
First, identify the cube of 1385, The cube of 1385 is 1385³ = 2,654,458,625.
Since 1384 is only a tiny bit less than 1385, the cube of 1384 will be almost the same as the cube of 1385.
The cube of 1384 is approximately 2,654,458,625 because the difference between 1384 and 1385 is very small.
So, we can approximate the value as 2,654,458,625.
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.