HCF and LCM Mastery
An interactive lesson on screen. Your child works through worked examples, practises on their own, then tests themselves with questions that get harder as they go.
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About this lesson
By the end of this lesson your child can look at any HCF or LCM question, worded or plain, and know instantly which one it needs and how to find it. Highest common factor and lowest common multiple come up all over the 11+ and GCSE Foundation papers, and the marks are usually lost on the choice rather than the method.
Topics covered:
- Finding the highest common factor by listing the factors of each number and ringing what they share
- Finding the lowest common multiple by counting up from the bigger number until the smaller one catches it
- Choosing between them, splitting something into equal groups needs the HCF, two things repeating until they line up needs the LCM
- Working backwards, finding a missing number from a given HCF or LCM
- Leftover questions, the smallest number that leaves 1 over when shared into two different group sizes
Every worked example is clicked through one line at a time, so nothing appears before your child has had a moment to think about it. They work the practice questions out on paper, then click each answer to check it.
How it's structured:
- Four units, each opening with two worked examples clicked through line by line, then 12 practice questions colour coded easy, medium and hard
- 76 practice questions in total, every answer hidden behind click to reveal, with a reveal all button on each page
- A final 20 question mixed challenge drawing on all four units, with the questions deliberately unlabelled so the choice has to be made first
Four hands-on Explore tools sit alongside the worked examples. A Common Factor Finder that tests one number at a time and shows which ones land in both lists, a Multiples Ladder that tells you which row is behind, a story sorter that highlights the exact words giving the question type away, and a Number Pair Machine for building your own pairs to a target HCF and LCM.
Use this if:
- Your child is in Year 4 to Year 11 and meeting HCF and LCM for the first time, or revising it for an exam
- You are preparing for 11+ entrance papers or GCSE Foundation
- Your child can do the method but keeps picking the wrong one on worded questions
- You want a resource your child can check their own work with, not one more thing on your to-do list
Built by an experienced maths teacher with over 3,000 hours of one-to-one tutoring experience and a Master's in Education.
Better value as a bundle. This lesson is one of 3 in the Factors, Multiples & Primes Bundle, all 3 for £11.99 instead of £17.97 bought separately.
Format: Interactive digital lesson, link sent by email straight after purchase.
Suitable for: Year 4 to Year 11, 11+, KS2, KS3, KS4, GCSE Foundation.
Who this is for
Built for students who want to practise independently, at their own pace, with clear examples and instant feedback rather than a static worksheet.
What's included
Worked examples
See the method explained step by step before trying it yourself.
Guided practice
Work through questions with answers hidden until you're ready to check.
Exam-style questions
Split easy to hard, so your child is always working at the right level.
How it works
Buy the lesson
Complete checkout securely through Shopify.
Get your link by email
Your lesson link lands in your inbox straight after payment.
Work through it on screen
Open the link on any device and start straight away.
What parents say
My son has been having 11+ Maths tuition with Aadam and the improvement in his confidence and ability has been noticeable. Aadam breaks down challenging topics in a way that’s easy to understand and ensures concepts are fully grasped before moving on. The sessions are focused and well planned.F. Khushi · January 2026
Aadam, the tutor has a lovely mannerism and has made my daughter feel at ease. He explains the question in a way that she understands and is patient with her. She has already seen the results at school from his help and has gone up two GCSE grades in a short period of time.P. Flower · December 2024
Aadam is the best maths tutor I’ve ever had! His online maths lessons are easy to follow, and he always breaks down difficult topics into manageable parts. Thanks to Aadam’s tutoring, I’ve gone up two grades in maths and feel ready for my GCSE exams!L. Anggriani · December 2024
Verified 5-star Google reviews of SHLC's tutoring and lessons. Read all 62 reviews
FAQs
How do I access the lesson?
You'll get an email with your lesson link as soon as payment goes through. Click it to open the lesson in any browser, no login and no app to install.
How does the marking work?
There's no typing answers into a box. Your child works it out on paper, then clicks to reveal the correct answer and checks their own work. Full working is shown too, not just the final answer, so mistakes are easy to spot.
Does it work on a phone or tablet?
It works best on a tablet or laptop, where there's more room to read the examples and questions. It'll open on a phone too, but the text and diagrams can feel quite small on a smaller screen.
Can I use the lesson more than once?
Yes. There's no limit on how many times you open the link, so it's there for revision right up to the exam.
What if I lose the link or don't get the email?
Email info@shlc-tutor.co.uk and we'll resend it straight away.
Ready to start?
Link sent to your email, ready in seconds
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