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Chapter Summary

Factors and Multiples — Chapter Summary

ICSE · Class 4 · Mathematics

Summary of Factors and Multiples for ICSE Class 4 Mathematics. Key concepts: A factor of a number, A multiple of a number and A prime number has only two.

47 questions30 flashcards3 formulas & key relations5 concepts

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Overview

In this chapter, we learn about two important mathematical ideas: factors and multiples. These concepts help us understand how numbers are related to each other through multiplication and division. Knowing about factors and multiples helps us solve many types of math problems easily.

Key Concepts

A factor of a number

A factor of a number is a number that divides it exactly without leaving a remainder. For example, 1, 2, 3, and 6 are factors of 6 because 6 can be di

A multiple of a number

A multiple of a number is the product of that number and any whole number. For example, multiples of 5 are 5, 10, 15, 20, etc., because they come from

A prime number has only two

A prime number has only two factors: 1 and itself. For example, 2, 3, 5, 7. A composite number has more than two factors. For example, 4, 6, 8, 9. Not

The largest factor that is common

The largest factor that is common to two or more numbers is called their HCF. For example, HCF of 12 and 18 is 6 because 6 is the largest number that

The smallest multiple that is common

The smallest multiple that is common to two or more numbers is called their LCM. For example, LCM of 4 and 6 is 12 because 12 is the smallest number t

Learning Objectives

  • Understand what factors and multiples are
  • Find all factors and multiples of a given number
  • Differentiate between prime and composite numbers
  • Find the Highest Common Factor (HCF) of two or more numbers
  • Find the Least Common Multiple (LCM) of two or more numbers

Frequently Asked Questions

What are the important topics in Factors and Multiples for ICSE Class 4 Mathematics?
Key topics in Factors and Multiples include Factors, Prime and Composite Numbers, Prime Factors, Multiples. Study these first, then practise questions on each for Class 4 exams.
How should I revise Factors and Multiples for Class 4 exams?
Learn the core ideas first, then work through the 47 practice questions on Factors and Multiples. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Factors and Multiples

All ICSE Class 4 Mathematics Chapter Summary

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