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CodeSignal

Finding the Highest Common Factor

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Overview

You'll identify common factors and determine the Highest Common Factor of two or more numbers using factor lists and prime factorisation, then apply HCF reasoning to practical equal-sharing and grouping problems.

Syllabus

  • Unit 1: Common Factors Between Numbers
    • Finding Common Factors
    • Complete The Common Factor Lists
    • Spot The Common Factors
    • Finding Shared Factors
  • Unit 2: HCF from Factor Lists
    • Find The Highest Common Factor
    • Find The Highest Common Factor
    • Finding Highest Common Factors
    • Explain The Highest Common Factor
  • Unit 3: HCF Using Prime Factors
    • Complete The HCF Statements
    • Finding HCF From Prime Factors
    • Finding HCF Of Three Numbers
    • Explain The Prime Factor Method
  • Unit 4: Solving HCF Problems
    • Recognizing HCF Situations
    • Complete The HCF Statements
    • Interpreting HCF Plate Problems
    • Explain Ribbon HCF Reasoning

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