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Last updated on May 14th, 2025

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Square of 842

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Foundation
Intermediate
Advance Topics

The product of multiplying an integer by itself is the square of a number. Square is used in programming, calculating areas, and so on. In this topic, we will discuss the square of 842.

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What is the Square of 842

The square of a number is the product of the number itself. The square of 842 is 842 × 842. The square of a number always ends in 0, 1, 4, 5, 6, or 9. We write it in math as 842², where 842 is the base and 2 is the exponent. The square of a positive and a negative number is always positive. For example, 5² = 25; -5² = 25.

 

The square of 842 is 842 × 842 = 708,964.

 

Square of 842 in exponential form: 842²

 

Square of 842 in arithmetic form: 842 × 842

 

square of 842

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How to Calculate the Value of Square of 842

The square of a number is multiplying the number by itself. So let’s learn how to find the square of a number. These are the common methods used to find the square of a number.

 

  1. By Multiplication Method
  2. Using a Formula
  3. Using a Calculator
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By the Multiplication method

In this method, we will multiply the number by itself to find the square. The product here is the square of the number. Let’s find the square of 842

 

Step 1: Identify the number. Here, the number is 842

 

Step 2: Multiplying the number by itself, we get, 842 × 842 = 708,964.

 

The square of 842 is 708,964.

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Using a Formula (a²)

In this method, the formula, a² is used to find the square of the number. Where a is the number.

 

Step 1: Understanding the equation Square of a number = a²

a² = a × a

 

Step 2: Identifying the number and substituting the value in the equation.

 

Here, ‘a’ is 842 So: 842² = 842 × 842 = 708,964

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By Using a Calculator

Using a calculator to find the square of a number is the easiest method. Let’s learn how to use a calculator to find the square of 842.

 

Step 1: Enter the number in the calculator Enter 842 in the calculator.

 

Step 2: Multiply the number by itself using the multiplication button (×) That is 842 × 842

 

Step 3: Press the equal to button to find the answer Here, the square of 842 is 708,964.

 

Tips and Tricks for the Square of 842

 

Tips and tricks make it easy for students to understand and learn the square of a number. To master the square of a number, these tips and tricks will help students.

 

  • The square of an even number is always an even number. For example, 6² = 36

 

  • The square of an odd number is always an odd number. For example, 5² = 25

 

  • The last digit of the square of a number is always 0, 1, 4, 5, 6, or 9.

 

  • If the square root of a number is a fraction or a decimal, then the number is not a perfect square. For example, √1.44 = 1.2

 

  • The square root of a perfect square is always a whole number. For example, √144 = 12.
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Common Mistakes to Avoid When Calculating the Square of 842

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Solved Examples on Square of 842

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Problem 1

Find the length of the square, where the area of the square is 708,964 cm².

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Explanation

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Problem 2

Lisa is planning to paint her square wall of length 842 feet. The cost to paint a foot is 3 dollars. Then how much will it cost to paint the full wall?

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Explanation

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Problem 3

Find the area of a circle whose radius is 842 meters.

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Explanation

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Problem 4

The area of the square is 708,964 cm². Find the perimeter of the square.

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Explanation

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Problem 5

Find the square of 843.

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Explanation

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FAQs on Square of 842

1.What is the square of 842?

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2.What is the square root of 842?

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3.Is 842 a prime number?

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4.What are the first few multiples of 842?

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5.What is the square of 841?

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Important Glossary for Square of 842.

  • Square: The product of multiplying a number by itself.

 

  • Exponential form: A way of writing numbers using bases and exponents, such as 842².

 

  • Perfect square: A number that is the square of an integer, e.g., 16, 25.

 

  • Square root: A number which produces a specified quantity when multiplied by itself.

 

  • Multiplication method: A process of finding the square by multiplying the number by itself.
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Jaskaran Singh Saluja

About the Author

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.

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Fun Fact

: He loves to play the quiz with kids through algebra to make kids love it.

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