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CodeSignal

Finding the Lowest Common Multiple

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Overview

You'll find common multiples and the Lowest Common Multiple using listing and prime factorisation methods, apply LCM to repeating-cycle problems, and learn to choose confidently between HCF and LCM in any situation.

Syllabus

  • Unit 1: Finding Common Multiples
    • Finding Common Multiples
    • Finding Common Multiples
    • Complete Common Multiples Statements
    • Find Shared Delivery Days
  • Unit 2: Finding LCM by Listing
    • Complete The LCM Statements
    • Read Schedules Find The LCM
    • Finding Lowest Common Multiples
    • Finding Common Renewal Month
  • Unit 3: LCM Using Prime Factorisation
    • Complete The LCM Statements
    • Find LCM Using Prime Factors
    • Finding LCM Of Three Numbers
    • Explain Why All Primes Matter
  • Unit 4: Solving Problems with LCM
    • Spotting Lowest Common Multiple
    • Complete The LCM Statements
    • Finding Matching Pack Totals
    • Explaining Repeating Cycle LCM
  • Unit 5: Choosing HCF or LCM
    • Match Problems To HCF LCM
    • Choosing HCF or LCM
    • Finish The HCF LCM Statements
    • Justify The Correct Method
    • Compare HCF and LCM Problems

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