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Edexcel IGCSE Math A Foundation 1.4 E Highest Common Factors Hcf and Lowest Common Questions

Practise HCF and LCM questions by comparing factors, listing multiples or using prime-power exponents from factorised numbers.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Foundation

Exam points

  • Find an HCF by comparing common factors or choosing smaller prime-power exponents.
  • Find an LCM by listing multiples or using the largest prime-power exponents.
  • Give HCF or LCM answers as prime-power products when A and B are factorised.

Edexcel IGCSE Math A Foundation 1.4 E Highest Common Factors Hcf and Lowest Common Questions question 1

[Maximum number: 1]

Find the highest common factor (HCF) of 21 and 35

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