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Number — Module 2: Factors, multiples, primes, HCF & LCM
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What you'll learn
- Number
- Primes, factors & multiples AQA GCSE 8300 §3.1.1 / N4
Inside this resource
- 4 slides
For the student — how to do this
For parents and carers
For teachers and tutors
How to check the work
Ask the learner to show or explain one idea, then try a fresh example with suitable support. Note any prompts needed; retelling alone does not show secure understanding.
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How to study with Number — Module 2: Factors, multiples, primes, HCF & LCM
This parent guide connects the page examples with a structured study routine. The listed resource is labelled Mathematics, GCSE, Year 10, Year 11, E-Learning Module. Use that setting, the learning summary and published prompts to decide what effective work should show.
Prepare a focused session
Read the title and learning focus side by side. Ask the learner to spot the ideas, terminology or technique they may need. Scan each sample and spot action words, amounts, hints, limits or new terms. Agree a realistic time window, clear distractions and prepare suitable tools such as paper, pencil, ruler, coloured pens, calculator, headphones or a device. Encourage an self-directed first attempt so the work reveals secure understanding and gaps. A short pause often strengthens recall better than an instant answer.
Make thinking visible
Invite the learner to describe the task in their own words. They can underline necessary information, separate a extended problem into smaller steps, draw a representation, arrange evidence, compose a sentence or describe a planned method. Ask why their method fits and whether another plan could work. When work stops, offer a staged hint: repeat the goal, point towards a relevant example, narrow the choice, then model only the next step. Return ownership immediately afterwards. Spoken reasoning reveals mistakes and practises precise subject language.
Check accuracy and understanding
Compare the attempt with visible answer guidance after sustained effort. Inspect more than the final work: review the method, explanation, units, evidence, sequence, spelling or presentation where relevant. Ask the learner to find the first point where their reasoning changed path. Complete corrections actively in a different colour or new space, followed by a short account of the correction. For a correct answer, request support and one self-directed check. This distinguishes secure ideas from guessing while strengthening accuracy, reflection and careful working habits.
Consolidate and extend
Finish with retrieval from memory. Cover the example and ask for the core idea, process or fact again. Create one small alternative by altering a value, condition, example, viewpoint or level of support while keeping the learning focus. Invite the learner to write a related question and supply checking guidance. Record one success and one precise next step, perhaps reviewing terminology, repeating a calculation, adding evidence or improving clarity. Recheck that target later in the week because spaced review gives better information than instant repetition.
The interactive player, downloadable file and complete answer material retain their existing access controls. The guide strengthens preparation, discussion and review.
Sample questions and answers
Try five questions from this exact activity. Review each authored answer and explanation, then note which ideas need another look. Compare the options and explain why the answer fits. Say the reasoning aloud or write a short justification before opening the interactive player to complete the activity and save progress.
Find the HCF of 24 and 36
- 6
- 8
- 12
- 72
Sample answer: 12
Explanation: 24 = 2²×3, 36 = 2²×3². Common factors give 2²×3 = 12.
Find the LCM of 8 and 12
- 4
- 24
- 48
- 96
Sample answer: 24
Explanation: 8 = 2³, 12 = 2²×3. LCM takes the highest powers: 2³×3 = 24.
Write 60 as a product of its prime factors
- 2² × 3 × 5
- 2 × 3 × 5
- 2³ × 5
- 2² × 15
Sample answer: 2² × 3 × 5
Explanation: 60 = 2 × 2 × 3 × 5 = 2² × 3 × 5.
Is 1 a prime number?
- Yes
- No
- Sometimes
- Only if even
Sample answer: No
Explanation: A prime has exactly two factors. 1 has only one, so it is not prime.
How many factors does 12 have?
- 4
- 5
- 6
- 12
Sample answer: 6
Explanation: 1, 2, 3, 4, 6, 12 — that is six factors.