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Number System - LCM and HCF Basic Video Lecture | Crash Course for XAT - CAT

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FAQs on Number System - LCM and HCF Basic Video Lecture - Crash Course for XAT - CAT

1. What is the full form of LCM and HCF?
Ans. LCM stands for Lowest Common Multiple and HCF stands for Highest Common Factor.
2. How is LCM calculated for two numbers?
Ans. To find the LCM of two numbers, you can either use the prime factorization method or the method of listing multiples of each number until you find a common multiple.
3. What is the relationship between LCM and HCF of two numbers?
Ans. The product of the LCM and HCF of two numbers is equal to the product of the two numbers themselves.
4. Can the LCM of two numbers be less than both numbers themselves?
Ans. No, the LCM of two numbers will always be greater than or equal to the larger of the two numbers.
5. How can LCM and HCF be used in real-life situations?
Ans. LCM and HCF are commonly used in various mathematical problems such as simplifying fractions, scheduling tasks, and calculating the time taken to fill a tank when two pipes are working together.
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