Last updated on May 27th, 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 cubes of 813.
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 813 can be written as 813³, which is the exponential form. Or it can also be written in arithmetic form as, 813 × 813 × 813.
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. 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. 813³ = 813 × 813 × 813 Step 2: You get 537,345,237 as the answer. Hence, the cube of 813 is 537,345,237.
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 813 into two parts, as 800 and 13. Let a = 800 and b = 13, so a + b = 813 Step 2: Now, apply the formula (a + b)³ = a³ + 3a²b + 3ab² + b³ Step 3: Calculate each term a³ = 800³ 3a²b = 3 × 800² × 13 3ab² = 3 × 800 × 13² b³ = 13³ Step 4: Add all the terms together: (a + b)³ = a³ + 3a²b + 3ab² + b³ (800 + 13)³ = 800³ + 3 × 800² × 13 + 3 × 800 × 13² + 13³ 813³ = 512,000,000 + 249,600 + 405,600 + 2,197 813³ = 537,345,237 Step 5: Hence, the cube of 813 is 537,345,237.
To find the cube of 813 using a calculator, input the number 813 and use the cube function (if available) or multiply 813 × 813 × 813. This operation calculates the value of 813³, resulting in 537,345,237. It’s a quick way to determine the cube without manual computation. Step 1: Ensure the calculator is functioning properly. Step 2: Press 8 followed by 1 and then 3 Step 3: If the calculator has a cube function, press it to calculate 813³. Step 4: If there is no cube function on the calculator, simply multiply 813 three times manually. Step 5: The calculator will display 537,345,237.
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 813?
The cube of 813 is 537,345,237 and the cube root of 813 is approximately 9.283.
First, let’s find the cube of 813. 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 813³ = 537,345,237. Next, we must find the cube root of 813. 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 ∛813 ≈ 9.283. Hence the cube of 813 is 537,345,237 and the cube root of 813 is approximately 9.283.
If the side length of the cube is 813 cm, what is the volume?
The volume is 537,345,237 cm³.
Use the volume formula for a cube V = Side³. Substitute 813 for the side length: V = 813³ = 537,345,237 cm³.
How much larger is 813³ than 800³?
813³ – 800³ = 25,345,237.
First, find the cube of 813, which is 537,345,237. Next, find the cube of 800, which is 512,000,000. Now, find the difference between them using the subtraction method. 537,345,237 – 512,000,000 = 25,345,237. Therefore, 813³ is 25,345,237 larger than 800³.
If a cube with a side length of 813 cm is compared to a cube with a side length of 13 cm, how much larger is the volume of the larger cube?
The volume of the cube with a side length of 813 cm is 537,345,237 cm³.
To find its volume, we multiply the side length by itself three times (since it’s a 3-dimensional object). Cubing 813 means multiplying 813 by itself three times: 813 × 813 = 660,969, and then 660,969 × 813 = 537,345,237. The unit of volume is cubic centimeters (cm³), because we are calculating the space inside the cube. Therefore, the volume of the cube is 537,345,237 cm³.
Estimate the cube of 812 using the cube of 813.
The cube of 812 is approximately 537,345,237.
First, identify the cube of 813. The cube of 813 is 813³ = 537,345,237. Since 812 is only a tiny bit less than 813, the cube of 812 will be almost the same as the cube of 813. The cube of 812 is approximately 537,345,237 because the difference between 812 and 813 is very small. So, we can approximate the value as 537,345,237.
Binomial Formula: It is an algebraic expression used to expand the powers of a number, written as (a + b)ⁿ, where ‘n’ is a positive integer raised to the base. The formula is used to find the square and cube of a number. Cube of a Number: Multiplying a number by itself three times is called the cube of a number. Exponential Form: It is a way of expressing numbers using a base and an exponent (or power), where the exponent value indicates how many times the base is multiplied by itself. For example, 2³ represents 2 × 2 × 2 equals to 8. Perfect Cube: A number that can be expressed as the product of an integer multiplied by itself twice more, like 8 (2 × 2 × 2). Cube Root: The cube root of a number is a value that, when multiplied by itself three times, gives the original number.
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.