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Last updated on December 2nd, 2024

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Square root of 144

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Foundation
Intermediate
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The square root of 144 is the inverse operation of squaring a value “y” such that when “y” is multiplied by itself → y ⤫ y, the result is 144. It contains both positive and a negative root, where the positive root is called the principal square root.

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What Is the Square Root of 144?

The square root of 144 is ±12.The positive value, 12 is the solution of the equation x2 = 144. As defined, the square root is just the inverse of squaring a number, so, squaring 12 will result in 144.  The square root of 144 is expressed as √144 in radical form, where the ‘√’  sign is called “radical”  sign. In exponential form, it is written as (144)1/2  
 

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Finding the Square Root of 144

We can find the square root of 144 through various methods. They are:

 

  • Prime factorization method

 

  • Long division method

 

  • Approximation/Estimation method
     
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Square Root of 144 By Prime Factorization Method

The prime factorization of 144 involves breaking down a number into its factors. Divide 144 by prime numbers, and continue to divide the quotients until they can’t be separated anymore. After factorizing 144, make pairs out of the factors to get the square root. If there exists numbers which cannot be made pairs further, we place those numbers with a “radical” sign along with the obtained pairs

 

So, Prime factorization of 144 = 2 × 2  × 2 × 2 × 3 × 3   

 


for 144, two pairs of factor 2 and one pair of factors 3 can be obtained.

 


So, it can be expressed as  √144 = √(2 × 2  × 2 × 2 × 3 × 3) = 2 × 2 × 3 = 12

 


12 is the simplest radical form of √144

 

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Square Root of 144 By Long Division Method

This is a method used for obtaining the square root for non-perfect squares, mainly. It usually involves the division of the dividend by the divisor, getting a quotient and a remainder too sometimes.

 

Follow the steps to calculate the square root of 144:


Step 1: Write the number 144 and draw a bar above the pair of digits from right to left.


Step 2: Now, find the greatest number whose square is less than or equal to 1. Here, it is1 because 12=1


Step 3: now divide 1 by 1 (the number we got from Step 2) such that we get 1 as a quotient, and we get a remainder.  Double the divisor 1, we get 2, and then the largest possible number A1=2 is chosen such that when 2 is written beside the new divisor 2, a 2-digit number is formed →22, and multiplying 2 with 22 gives 44, which is equal to 0 on subtracting from 44.


Repeat this process until you reach the remainder of 0. 

 

Step 4: The quotient obtained is the square root of 144. In this case, it is 12.

 

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Square Root of 144 By Subtraction Method

roots through the repeated subtraction method. Furthermore, we just have to subtract consecutive odd numbers from the given number, starting from 1. The square root of the given number will be the count of the number of steps required to obtain 0. Here are the steps:

 

Step 1: take the number 144 and then subtract the first odd number from it. Here, in this case, it is 144-1=143


Step 2: we have to subtract the next odd number from the obtained number until it comes zero as a result. Now take the obtained number (from Step 1), i.e., 143, and again subtract the next odd number after 1, which is 3, → 143-3=140. Like this, we have to proceed further.


Step 3: now we have to count the number of subtraction steps it takes to yield 0 finally. 


Here, in this case, it takes 12 steps 


So, the square root is equal to the count, i.e., the square root of 144 is ±12.

 

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Common Mistakes and How to Avoid Them in the Square Root of 144

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Square Root of 144 Examples

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Problem 1

Find √(144⤬4) ?

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Explanation

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Problem 2

What is √144 multiplied by 14 ?

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Explanation

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Problem 3

Find the radius of a circle whose area is 144π cm².

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Explanation

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Problem 4

Find the length of a side of a square whose area is 144 cm²

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Explanation

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Problem 5

Find √144 / √36

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Explanation

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FAQs on 144 Square Root

1.How many times does 9 go into 144?

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2.Can 144 be divided by 9?

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3.Is 144 a perfect square or non-perfect square?

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4.Is the square root of 144 a rational or irrational number?

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5.What are the factors of 144 ?

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Important Glossaries for Square Root of 144

  • Exponential form:  An algebraic expression that includes an exponent. It is a way of expressing the numbers raised to some power of their factors. It includes continuous multiplication involving base and exponent. Ex: 2 × 2 × 2 × 2 = 16 Or, 24 = 16, where 2 is the base, 4 is the exponent 

 

  • Prime Factorization:  Expressing the given expression as a product of its factors. Ex: 48=2 × 2 × 2 × 2 × 3

 

  • Prime Numbers: Numbers which are greater than 1, having only 2 factors as →1 and Itself. Ex: 1,3,5,7,....

 

  • Rational numbers and Irrational numbers: The Number which can be expressed as p/q, where p and q are integers and q not equal to 0 are called Rational numbers. Numbers which cannot be expressed as p/q, where p and q are integers and q not equal to 0 are called Irrational numbers. 

 

  • Perfect and non-perfect square numbers: Perfect square numbers are those numbers whose square roots do not include decimal places. Ex: 4,9,25 Non-perfect square numbers are those numbers whose square roots comprise decimal places. Ex :3, 8, 24
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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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