Square Root of 199

The square root is the inverse of the square of the number. 199 is not a perfect square. The square root of 199 is expressed in both radical and exponential form. In the radical form, it is expressed as √199, whereas (199)¹/² in the exponential form. √199 ≈ 14.10674, 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:

• Prime factorization method
   
• Long division method
   
• Approximation method

The product of prime factors is the prime factorization of a number. Now let us look at how 199 is broken down into its prime factors.

Step 1: Finding the prime factors of 199 199 is a prime number itself, so it cannot be broken down further.

Step 2: Since 199 is not a perfect square, calculating √199 using prime factorization is not applicable.

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 199, we need to group it as 99 and 1.

Step 2: Now we need to find n whose square is 1. We can say n is ‘1’ because 1 × 1 is lesser than or equal to 1. Now the quotient is 1, and after subtracting 1-1, the remainder is 0.

Step 3: Now let us bring down 99, which is the new dividend. Add the old divisor with the same number, 1 + 1, we get 2, which will be our new divisor.

Step 4: The new divisor will be the sum of the dividend and quotient. Now we get 2n as the new divisor, we need to find the value of n.

Step 5: The next step is finding 2n × n ≤ 99. Let us consider n as 4, now 24 × 4 = 96.

Step 6: Subtract 99 from 96, the difference is 3, and the quotient is 14.

Step 7: 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 300.

Step 8: Now we need to find the new divisor. Let n be 1, because 281 × 1 = 281.

Step 9: Subtracting 281 from 300, we get the result 19.

Step 10: Now the quotient is 14.1.

Step 11: Continue doing these steps until we get two numbers after the decimal point or continue until the remainder is zero.

So the square root of √199 is approximately 14.10.

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 199 using the approximation method.

Step 1: Now we have to find the closest perfect squares of √199. The smallest perfect square less than 199 is 196, and the largest perfect square greater than 199 is 225. √199 falls somewhere between 14 and 15.

Step 2: Now we need to apply the formula: (Given number - smallest perfect square) / (Greater perfect square - smallest perfect square) Using the formula: (199 - 196) / (225 - 196) = 3 / 29 ≈ 0.1034 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 14 + 0.1034 ≈ 14.10, so the square root of 199 is approximately 14.10.

• 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, the positive square root is more prominent due to its uses in the real world. This is why it is also known as the principal square root.

• Prime number: A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

• Decimal: If a number has a whole number and a fraction in a single number, then it is called a decimal. For example: 7.86, 8.65, and 9.42 are decimals.