125 LearnersLast updated on May 26th, 2025
Square Root of 1223
If a number is multiplied by the same number, the result is a square. The inverse of the square is a square root. The square root is used in the field of vehicle design, finance, etc. Here, we will discuss the square root of 1223.
What is the Square Root of 1223?
The square root is the inverse of the square of the number. 1223 is not a perfect square. The square root of 1223 is expressed in both radical and exponential form. In the radical form, it is expressed as √1223, whereas (1223)^(1/2) in the exponential form. √1223 ≈ 34.9637, which is an irrational number because it cannot be expressed in the form of p/q, where p and q are integers and q ≠ 0.
Finding the Square Root of 1223
The prime factorization method is used for perfect square numbers. However, the prime factorization method is not used for non-perfect square numbers where the long-division method and approximation method are used. Let us now learn the following methods:
- Prime factorization method
- Long division method
- Approximation method
Square Root of 1223 by Prime Factorization Method
The product of prime factors is the prime factorization of a number. Now let us look at how 1223 is broken down into its prime factors.
Step 1: Finding the prime factors of 1223 Breaking it down, we get 11 x 111: 11 x 3 x 37
Step 2: Now we found out the prime factors of 1223. The second step is to make pairs of those prime factors. Since 1223 is not a perfect square, therefore the digits of the number can’t be grouped in pairs.
Therefore, calculating 1223 using prime factorization is impossible.
Square Root of 1223 by Long Division Method
The long division method is particularly used for non-perfect square numbers. In this method, we should check the closest perfect square number for the given number. Let us now learn how to find the square root using the long division method, step by step.
Step 1: To begin with, we need to group the numbers from right to left. In the case of 1223, we need to group it as 23 and 12.
Step 2: Now we need to find n whose square is closest to 12. We can say n as ‘3’ because 3 x 3 is lesser than or equal to 12. Now the quotient is 3, and after subtracting 9 from 12, the remainder is 3.
Step 3: Now let us bring down 23, which is the new dividend. Add the old divisor with the same number, 3 + 3, and we get 6, which will be our new divisor.
Step 4: The new divisor will be the sum of the dividend and quotient. Now we get 6n as the new divisor; we need to find the value of n.
Step 5: The next step is finding 6n × n ≤ 323; let us consider n as 5, now 65 x 5 = 325
Step 6: Since 325 is greater than 323, let us consider n as 4. Now 64 x 4 = 256
Step 7: Subtract 256 from 323; the difference is 67, and the quotient is 34.
Step 8: Since the dividend is less than the divisor, we need to add a decimal point. Adding the decimal point allows us to add two zeroes to the dividend. Now the new dividend is 6700.
Step 9: Now we need to find the new divisor that is 9 because 679 x 9 = 6111
Step 10: Subtracting 6111 from 6700, we get the result 589.
Step 11: Now the quotient is 34.9 Step 12: Continue doing these steps until we get two numbers after the decimal point. Suppose if there are no decimal values, continue till the remainder is zero.
So the square root of √1223 is approximately 34.96.
Square Root of 1223 by Approximation Method
The approximation method is another method for finding square roots. It is an easy method to find the square root of a given number. Now let us learn how to find the square root of 1223 using the approximation method.
Step 1: Now we have to find the closest perfect square of √1223. The smallest perfect square less than 1223 is 1156, and the largest perfect square greater than 1223 is 1296. √1223 falls somewhere between 34 and 36.
Step 2: Now we need to apply the formula: (Given number - smallest perfect square) / (Greater perfect square - smallest perfect square). Going by the formula (1223 - 1156) ÷ (1296 - 1156) = 67 ÷ 140 ≈ 0.4786 Using the formula, we identified the decimal point of our square root. The next step is adding the value we got initially to the decimal number, which is 34 + 0.4786 = 34.4786, so the square root of 1223 is approximately 34.48.
Common Mistakes and How to Avoid Them in the Square Root of 1223
Students do make mistakes while finding the square root, such as forgetting about the negative square root, skipping long division methods, etc. Now let us look at a few of those mistakes that students tend to make in detail.
Mistake 1
Forgetting about the negative square root
It is important to make students aware that a number does have both positive and negative square roots. However, we will be taking only the positive square root, as it is the required one.
For example: √50 = 7.07, there is also -7.07, which should not be forgotten.
Mistake 2
Not adding the square root symbol in proper places
Not using the square root properly is another mistake that children make. To resolve this, we need to teach children that simplifying the numbers inside the square root is important and then move on to the second step.
For example: √(12+24) = √12 + √24 is the wrong method of using roots. The right way of using roots is √(12+24) = √36.
Mistake 3
Not finding the correct value of a non-perfect square
The first step that needs to be taught to children is to simplify the numbers inside the square root. This is important so that students do not make mistakes while identifying the approximate value.
For example: √50 = 7 is wrong, the correct answer is √50 ≈ 7.071067.
Mistake 4
Confusing the square root symbol with the cube root
Students need to be taught the difference between cube root and square root constantly, as this will help them keep away from mistakes.
For example: √50 and ∛50 are different.
Mistake 5
Making mistakes in long division
Finding a square root using the long division method involves many steps. Due to this, many students might skip a step accidentally, which results in a wrong answer at the end of the sum. This may either happen in subtracting or elsewhere.
Square root of 1223 Examples
Problem 1
Can you help Max find the area of a square box if its side length is given as √1223?
The area of the square is 1223 square units.
Explanation
The area of the square = side².
The side length is given as √1223.
Area of the square = side² = √1223 x √1223 = 1223
Therefore, the area of the square box is 1223 square units.
Problem 2
A square-shaped garden measuring 1223 square feet is built; if each of the sides is √1223, what will be the square feet of half of the garden?
611.5 square feet
Explanation
We can just divide the given area by 2, as the garden is square-shaped.
Dividing 1223 by 2 = we get 611.5
So half of the garden measures 611.5 square feet.
Problem 3
Calculate √1223 x 3.
104.8911
Explanation
The first step is to find the square root of 1223, which is approximately 34.9637.
The second step is to multiply 34.9637 by 3.
So 34.9637 x 3 ≈ 104.8911.
Problem 4
What will be the square root of (1223 + 25)?
The square root is 36.
Explanation
To find the square root, we need to find the sum of (1223 + 25).
1223 + 25 = 1248, and then √1248 ≈ 35.33.
Therefore, the square root of (1223 + 25) is approximately 35.33.
Problem 5
Find the perimeter of the rectangle if its length ‘l’ is √1223 units and the width ‘w’ is 30 units.
We find the perimeter of the rectangle as approximately 139.93 units.
Explanation
Perimeter of the rectangle = 2 × (length + width)
Perimeter = 2 × (√1223 + 30)
≈ 2 × (34.9637 + 30)
≈ 2 × 64.9637
≈ 129.93 units.
FAQ on Square Root of 1223
1.What is √1223 in its simplest form?
2.Mention the factors of 1223.
3.Calculate the square of 1223.
4.Is 1223 a prime number?
5.1223 is divisible by?
6.How does learning Algebra help students in Singapore make better decisions in daily life?
7.How can cultural or local activities in Singapore support learning Algebra topics such as Square Root of 1223?
8.How do technology and digital tools in Singapore support learning Algebra and Square Root of 1223?
9.Does learning Algebra support future career opportunities for students in Singapore?
Important Glossaries for the Square Root of 1223
- Square root: A square root is the inverse of a square. Example: 4² = 16, and the inverse of the square is the square root, that is √16 = 4.
- Irrational number: An irrational number is a number that cannot be written in the form of p/q, where q is not equal to zero and p and q are integers.
- Principal square root: A number has both positive and negative square roots; however, it is always the positive square root that has more prominence due to its uses in the real world. That is the reason it is also known as a principal square root.
- Prime factorization: Breaking down a number into its smallest prime factors.
- Approximation: A method of finding an estimate of a number or value when an exact answer is not possible or practical.
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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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