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HCF and LCM

Numbers and Decimals HCF and LCM
Courses Overview

🎬 Video Tutorial

  • (0:01) What is HCF and LCM (Definitions): Highest Common Factor (HCF) is the biggest factor the numbers share. Lowest Common Multiple is the smallest multiple the numbers share. 
  • (0:24) How to Find HCF and LCM of 12 and 18: For HCF, list all factors of each number and identify the largest shared factor, which is 6. For LCM, list the multiples of each number and select the smallest shared multiple, which is 36.
  • (1:19) How to Find HCF and LCM Using Prime Factorization Method: For HCF, take the lowest power of common prime factors; For LCM, take the highest power of all prime factors. Learn with clear examples in this lesson!

📂 Revision Cards

Explanation that HCF is the biggest factor shared and LCM is the smallest multiple shared.
1) HCF and LCM
Method for finding Highest Common Factor (HCF) and Lowest Common Multiple (LCM) by listing factors and multiples, with HCF of 6 and LCM of 36.
2) Finding HCF and LCM
Using prime factorisation to find HCF and LCM for numbers 180 and 168, with step-by-step calculations and final results.
3) Finding HCF and LCM

🍪 Quiz Time - Practice Now!

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