Last updated on May 26th, 2025
If a number is multiplied by itself, the result is a square. The inverse of the square is a square root. The square root is used in fields such as vehicle design, finance, etc. Here, we will discuss the square root of 3924.
The square root is the inverse of the square of the number. 3924 is not a perfect square. The square root of 3924 is expressed in both radical and exponential forms. In the radical form, it is expressed as √3924, whereas (3924)^(1/2) in the exponential form. √3924 ≈ 62.62322, 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.
The prime factorization method is used for perfect square numbers. However, for non-perfect square numbers, the long division method and approximation method are used. Let us now learn the following methods:
The product of prime factors is the prime factorization of a number. Now let us look at how 3924 is broken down into its prime factors.
Step 1: Finding the prime factors of 3924 Breaking it down, we get 2 x 2 x 3 x 3 x 109: 2^2 x 3^2 x 109
Step 2: Now we found out the prime factors of 3924. The second step is to make pairs of those prime factors. Since 3924 is not a perfect square, the digits of the number can’t be grouped in pairs for complete squares.
Therefore, calculating √3924 using prime factorization directly is not possible.
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 3924, we group it as 39 and 24.
Step 2: Now, find the largest number whose square is less than or equal to 39. That number is 6 because 6^2 = 36. The quotient is 6, and the remainder is 3 after subtracting 36 from 39.
Step 3: Bring down the next pair, 24, making the new dividend 324. Double the quotient and place it as the new divisor's base, giving us 12.
Step 4: Find a digit 'n' such that 12n × n is less than or equal to 324. The correct digit is 6, because 126 × 6 = 756, which is more than 324, so try 125 × 5 = 625, which is also more, so correct to 124 × 2 = 248.
Step 5: Subtract 248 from 324, leaving a remainder of 76. The quotient continues to 62.
Step 6: 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, making it 7600.
Step 7: Continue finding the number 'n' for new divisions until you achieve the desired precision.
So the square root of √3924 ≈ 62.62
The approximation method is another technique 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 3924 using the approximation method.
Step 1: Find the closest perfect squares around 3924. The smallest perfect square less than 3924 is 3844 (62^2), and the largest perfect square more than 3924 is 3969 (63^2). √3924 falls somewhere between 62 and 63.
Step 2: Apply the interpolation formula: (Given number - smaller perfect square) / (larger perfect square - smaller perfect square). Using the formula (3924 - 3844) / (3969 - 3844) = 0.64 Now add this decimal to the lower whole number: 62 + 0.64 ≈ 62.64, so the square root of 3924 is approximately 62.64.
Students often make mistakes while finding the square root, such as forgetting about the negative square root, skipping long division steps, etc. Now let us look at a few of those mistakes in detail.
Can you help Max find the area of a square box if its side length is given as √3924?
The area of the square is 3924 square units.
The area of a square = side^2.
The side length is given as √3924.
Area of the square = side^2 = √3924 × √3924 = 3924.
Therefore, the area of the square box is 3924 square units.
A square-shaped building measuring 3924 square feet is built; if each of the sides is √3924, what will be the square feet of half of the building?
1962 square feet
We can just divide the given area by 2 since the building is square-shaped.
Dividing 3924 by 2 gives us 1962.
So, half of the building measures 1962 square feet.
Calculate √3924 × 5.
313.115
The first step is to find the square root of 3924, which is approximately 62.623.
The second step is to multiply 62.623 with 5.
So, 62.623 × 5 ≈ 313.115.
What will be the square root of (3900 + 24)?
The square root is approximately 62.62.
To find the square root, we need to find the sum of (3900 + 24).
3900 + 24 = 3924, and then √3924 ≈ 62.62.
Therefore, the square root of (3900 + 24) is approximately ±62.62.
Find the perimeter of the rectangle if its length ‘l’ is √3924 units and the width ‘w’ is 38 units.
We find the perimeter of the rectangle as 201.246 units.
Perimeter of the rectangle = 2 × (length + width).
Perimeter = 2 × (√3924 + 38)
= 2 × (62.623 + 38)
= 2 × 100.623
= 201.246 units.
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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