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Chapter 9 of 17
Syllabus

Factors and Multiples — Syllabus

ICSE · Class 4 · Mathematics

What Factors and Multiples covers in ICSE Class 4 Mathematics: 4 topics, for the 2026-27 session. Part of the ICSE Class 4 Mathematics syllabus.

47 questions30 flashcards3 formulas & key relations5 concepts

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4 Topics · ICSE Class 4 Mathematics · 2026-27

Topics in Factors and Multiples

1

1. Factors

  • A factor of a number divides it completely without leaving any remainder.
  • 1 is a factor of every number.
  • Every number is a factor of itself.
2

2. Prime and Composite Numbers

  • Prime numbers have exactly two factors: 1 and the number itself.
  • Composite numbers have more than two factors.
  • 1 is neither prime nor composite — it has only one factor.
3

3. Prime Factors

  • Prime factors are factors that are also prime numbers.
  • Every composite number can be written as a product of prime factors.
  • Two methods: Factor Tree and Prime Factorization.
4

4. Multiples

  • A multiple is the product of a number and any counting number (1, 2, 3, ...).
  • Every number is a multiple of itself and 1.
  • 0 is a multiple of every number.

Key Concepts

Central concept: Factors and Multiples

FactorsMultiplesPrime NumbersComposite NumbersPrime FactorsHighest Common Factor (HCF)Least Common Multiple (LCM)Common Factors and Multiples

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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.

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All ICSE Class 4 Mathematics Syllabus

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