Square root is described with the symbol √. If n is an integer, the square of n is equal to m which is also an integer. If n² = m, then n=√m. The square root of 512 is written as √512. Let us explore the square root of 512 in detail in this lesson. 512 is a composite number, as it has more than 2 factors. 512 an irrational number. In this lesson, we will calculate the square root of 512 by long division method and see why 512 is an irrational number. Let us now find the square root of 512.

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Square Root of 512512 = 22.62741Square of 512: 5122 = 262,144
1.What Is the Square Root of 512?
2.Is Square Root of 512 Rational or Irrational?
3.How to Find the Square Root of 512?
4.Thinking Out of the Box!
5.FAQs on Square Root of 512 

What Is the Square Root of 512?


Square root is just an inverse operation of square. The number whose square gives 512 is the square root of 512. Square root of 512 in the radical form is represented as √512. It is expressed as (512)½ in the exponent form. Non-square numbers also have a square root, but they are not whole numbers. The square root of 512 rounded to 5 decimal places is 22.62741.


Is the Square Root of 512 Rational or Irrational?


A rational number is a number that is expressed in the form of p/q where p and q are integers and q is not equal to 0. A number that cannot be expressed as a ratio of two integers is an irrational number. Non-terminating decimals with repeated numbers after the decimal point are rational numbers. √512 = 22.62741. Square root of 512 cannot be written in the form of p/q, where p, q are integers and q is not equal to 0. The value of 512 is 22.62741. Hence, 512 is not a rational number. 


How to Find the Square Root of 512?


There are different methods to find the square root of any number. Click here to know more about the different methods.

Simplified Radical Form of Square Root of 512

512 is a composite number obtained by the product of the prime number 2. Hence, the simplified radical form of 512 is 16√2.

We can find the square root of 512 by the following two methods:

Long Division Method

Square Root of 512 by Prime Factorization 

To find the square root of 512 by prime factorization method, we need to find the prime factors of 512.512 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 29512 = 16√2

Square Root of 512 by Long Division

The value of the square root of 512 by long division method consists of the following steps:

Step 1: Place a bar over every pair of digits of the number starting from the unit’s place (right-most side). We will have two pairs, i.e. 5 and 12.Step 2: We divide the left-most number by the largest number whose square is less than or equal to the number in the left-most pair. (2 × 2 = 4)Step 4: The new number in the quotient will have the same number as selected in the divisor (42 × 2 = 84). The condition is the same as being either less than or equal to that of the dividend (84 Step 5: Now, we will continue this process further using a decimal point and adding zeros in pairs to the remainder.Step 6: The quotient thus obtained will be the square root of the number.

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On repeating the above steps, we will obtain the value of the square root of 512 which is √512 = 22.62741 up to 5 decimal places.

Explore square roots using illustrations and interactive examples


Think Tank:


Can you find a quadratic equation with root as 512?As (-512)2 = 512, can we say that -512 is also a square root of 512?

Example 1: Help Ron find the square root of 512 up to 3 decimal places.

Solution

Following the same steps as discussed above, we will find the square root of 512 up to 3 decimal places.

Step 1: Place a bar over every pair of digits of the number starting from the unit’s place (right-most side). We will have two pairs, i.e. 5 and 12.Step 2: We divide the left-most number by the largest number whose square is less than or equal to the number in the left-most pair. (2 × 2 = 4)Step 3: Bring down the number under the next bar to the right of the remainder. Add the last digit of the quotient to the divisor (2 + 2 = 4). To the right of the obtained sum, find a suitable number which together with the result of the sum forms a new divisor (42) for the new dividend (112) that is carried down.Step 4: The new number in the quotient will have the same number as selected in the divisor (42 × 2 = 84). The condition is the same as being either less than or equal to that of the dividend (84 Step 5: Now, we will continue this process further using a decimal point and adding zeros in pairs to the remainder.Step 6: The quotient thus obtained will be the square root of the number.Step 7: Repeat the process till 3 decimal places.

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Example 2: What is the difference between the lengths of the radii of circles having areas 512π and 100π square inches?

Solution

The length of the radius of a circle with area 512π is to be calculated.

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Area = πr2 = 512πHere, r = √512 = 22.62 inchesNext, the length of the radius of a circle with area 100π is to be calculated. Area = πr2 = 100πHere, r = √100 = 10 inchesHence, the difference between the lengths of the radii of circles having areas 512π and 100π square inches is (22.62 - 10) = 12.62 inches.