EVERYTHING HIGHEST COMMON FACTOR & LOWEST COMMON MULTIPLE Inc. PRIME FACTORS | GCSE Maths Pro

In this video we go through a summary of all parts of the HCF and LCM topic which includes how to find the product of prime factors by using prime factor decomposition and factor trees, how to find the highest common factor and lowest common multiple using venn diagrams including 3 parts, and how to apply lowest common multiple to worded problems. Comment down below if you have any questions! Individual HCF/LCM Videos: Part 1 - Product of Prime Factors & Prime Factor Decomposition    • Product of Prime Factors & Prime Factor De...   Part 2 - Highest Common Factor (HCF)    • Highest Common Factor (HCF) | GCSE Maths Pro   Part 3 - Lowest Common Multiple (LCM)    • Lowest Common Multiple (LCM) | GCSE Maths Pro   Part 4 - Worded LCM problems    • Worded Problems with Lowest Common Multipl...   By working with Amazon, I use affiliate links and may earn a commission at no extra cost to you Scientific calculator: https://amzn.to/4hQ0sw4 GCSE exam pencil case: https://amzn.to/3EsxPXl CGP Maths Revision Guide Edexcel (Higher Tier): https://amzn.to/4hwXkW7 CGP Maths Revision Guide AQA (Higher Tier): https://amzn.to/4b3fEUr CGP Maths Revision Guide (Foundation Tier): https://amzn.to/3WVqOES Chapters: 0:00 Introduction 0:24 Q1. Write 27 as a product of its prime factors 2:43 Q2. Write 180 as a product of its prime factors 4:13 Q3. Find the HCF of 24 and 72 6:53 Q4. Find the HCF of 20, 48 and 120 8:55 Q5. Find the HCF of A and B 10:51 Q6. Find the LCM of 12 and 15 12:06 Q7. Find the LCM of 18, 56 and 126 14:27 Q8. Find the LCM of A and B 15:50 Q9. Train A arrives every 16 minutes and Train B arrives every 24 minutes 18:47 Q10. Blue lights flash every 8 seconds, Green lights flash every 12 seconds and Red lights flash every 15 seconds Follow me for more content here: TikTok:   / gcsemathspro   Instagram:   / gcsemathspro   Welcome to the GCSE Maths Pro YouTube Channel! My name is Millie and I am a GCSE Maths tutor with 3+ years experience. I have created this YouTube channel to help a wider audience of students make some sense of GCSE Maths!