Calculating Square Root by Prime Factorization - Quantitative Aptitude

# Calculating Square Root by Prime Factorization - Quantitative Aptitude Video Lecture | CSAT Preparation - UPSC

## CSAT Preparation

194 videos|156 docs|192 tests

## FAQs on Calculating Square Root by Prime Factorization - Quantitative Aptitude Video Lecture - CSAT Preparation - UPSC

 1. How can I calculate the square root of a number using prime factorization?
Ans. To calculate the square root of a number using prime factorization, you need to follow these steps: 1. Find the prime factors of the given number. 2. Group the prime factors into pairs, each pair representing the same prime factor. 3. Take one factor from each pair and multiply them. 4. The result obtained from step 3 is the square root of the given number.
 2. Is prime factorization a reliable method to calculate square roots?
Ans. Yes, prime factorization is a reliable method to calculate square roots. It is based on the fundamental theorem of arithmetic, which states that every integer greater than 1 can be uniquely expressed as a product of prime numbers. By using prime factorization, we can determine the exact factors of a number and calculate its square root accurately.
 3. Can prime factorization be used for all numbers to calculate their square roots?
Ans. Yes, prime factorization can be used for all numbers to calculate their square roots. However, the method becomes more complex and time-consuming for larger numbers with a large number of prime factors. In such cases, alternate methods like long division or approximation methods may be more efficient.
 4. How does prime factorization help in calculating square roots?
Ans. Prime factorization helps in calculating square roots by breaking down a number into its prime factors. When we group the prime factors into pairs, each pair represents the same prime factor. Taking one factor from each pair and multiplying them gives us the square root of the given number. This method ensures that the square root obtained is the exact value.
 5. Are there any limitations or drawbacks to using prime factorization for square root calculation?
Ans. One limitation of using prime factorization for square root calculation is that it can become cumbersome and time-consuming for larger numbers with a large number of prime factors. Additionally, this method may not be suitable for situations where an approximate or decimal value of the square root is required. In such cases, alternate methods like long division or using a calculator may be more practical.

## CSAT Preparation

194 videos|156 docs|192 tests

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