Last updated on May 26th, 2025
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 1345.
The square root is the inverse of the square of the number. 1345 is not a perfect square. The square root of 1345 is expressed in both radical and exponential form. In the radical form, it is expressed as √1345, whereas (1345)^(1/2) in the exponential form. √1345 ≈ 36.6563, 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, 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:
The product of prime factors is the prime factorization of a number. Now let us look at how 1345 is broken down into its prime factors:
Step 1: Finding the prime factors of 1345
Breaking it down, we get 5 x 269.
Step 2: Now we found out the prime factors of 1345. The second step is to make pairs of those prime factors. Since 1345 is not a perfect square, therefore the digits of the number can’t be grouped in pairs. Therefore, calculating 1345 using prime factorization is not straightforward.
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 1345, we need to group it as 45 and 13.
Step 2: Now we need to find n whose square is ≤ 13. We can say n as ‘3’ because 3 x 3 = 9 is less than 13. Now the quotient is 3 after subtracting 13 - 9, the remainder is 4.
Step 3: Now let us bring down 45, which is the new dividend. Add the old divisor with the same number 3 + 3, 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 x n ≤ 445. Let's consider n as 7, now 67 x 7 = 469.
Step 6: Subtract 445 from 469; since 469 is greater than 445, n should be 6. So, 66 x 6 = 396.
Step 7: Subtract 396 from 445; the difference is 49, and the quotient is 36.
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 4900.
Step 9: Now we need to find the new divisor. It is 732 because 732 x 6 = 4392.
Step 10: Subtracting 4392 from 4900 we get 508.
Step 11: Now the quotient is 36.6. Continue doing these steps until we get two numbers after the decimal point. Suppose if there is no decimal values continue till the remainder is zero.
So the square root of √1345 is approximately 36.656.
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 1345 using the approximation method.
Step 1: Now we have to find the closest perfect square of √1345. The smallest perfect square before 1345 is 1296, and the largest perfect square after 1345 is 1369. √1345 falls somewhere between 36 and 37.
Step 2: Now we need to apply the formula that is: (Given number - smallest perfect square) / (Greater perfect square - smallest perfect square). Going by the formula (1345 - 1296) / (1369 - 1296) = 49 / 73 ≈ 0.671. 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 36 + 0.671 = 36.671, so the approximate square root of 1345 is 36.671.
Students do make mistakes while finding the square root, likewise 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.
Can you help Max find the area of a square box if its side length is given as √1400?
The area of the square is 1400 square units.
The area of the square = side².
The side length is given as √1400.
Area of the square = side² = √1400 x √1400 = 1400.
Therefore, the area of the square box is 1400 square units.
A square-shaped building measuring 1345 square feet is built; if each of the sides is √1345, what will be the square feet of half of the building?
672.5 square feet
We can just divide the given area by 2 as the building is square-shaped.
Dividing 1345 by 2 = we get 672.5
So half of the building measures 672.5 square feet.
Calculate √1345 x 5.
183.2815
The first step is to find the square root of 1345 which is approximately 36.656.
The second step is to multiply 36.656 with 5.
So 36.656 x 5 ≈ 183.2815.
What will be the square root of (1321 + 24)?
The square root is 37.
To find the square root, we need to find the sum of (1321 + 24). 1321 + 24 = 1345, and then √1345 ≈ 36.656.
Therefore, the square root of (1321 + 24) is approximately ±36.656.
Find the perimeter of the rectangle if its length ‘l’ is √1345 units and the width ‘w’ is 50 units.
We find the perimeter of the rectangle as approximately 173.3126 units.
Perimeter of the rectangle = 2 × (length + width)
Perimeter = 2 × (√1345 + 50) = 2 × (36.656 + 50) = 2 × 86.656 = 173.312 units (approximately).
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.