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Factors and Multiples Video Lecture | Mathematics for Class 4

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FAQs on Factors and Multiples Video Lecture - Mathematics for Class 4

1. What are factors and multiples in mathematics?
Ans. Factors are the numbers that divide a given number exactly, whereas multiples are the result of multiplying a given number by any other number. For example, factors of 12 are 1, 2, 3, 4, 6, and 12, while multiples of 12 are 12, 24, 36, 48, etc.
2. How can one find the common factors of two or more numbers?
Ans. To find the common factors of two or more numbers, we need to list all the factors of each number and then find the common ones. For example, the common factors of 12 and 18 are 1, 2, 3, and 6.
3. What is the difference between LCM and HCF?
Ans. LCM stands for Least Common Multiple, which is the smallest number that is a multiple of two or more numbers. On the other hand, HCF stands for Highest Common Factor, which is the largest number that divides two or more numbers exactly.
4. How can one find the LCM of two or more numbers?
Ans. To find the LCM of two or more numbers, we need to list the multiples of each number until we find a common multiple. The smallest common multiple is the LCM. For example, the LCM of 4 and 6 is 12, as 12 is the smallest number that is a multiple of both 4 and 6.
5. What are some real-life applications of factors and multiples?
Ans. Factors and multiples have many applications in real life, such as finding the common denominators in fractions, calculating the least number of objects needed to arrange them in rows and columns, and finding the time for two events to occur at the same time again.
30 videos|110 docs|30 tests
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