Factors, Multiples & Primes Bundle

By the end of these three lessons your child can list every factor and multiple of a number without missing one, decide whether a worded question wants the highest common factor or the lowest common multiple, and break any number down into its prime factors. Simplifying fractions, adding fractions with different denominators and factorising at GCSE all sit on top of these three skills, so a gap here keeps coming back.

What's included:

• Factors and Multiples - 5 units (Multiples and Awkward Times Tables, Divisibility Tests, Finding Every Factor, Sum and Product With Positive Pairs, Sum and Product With Negative Pairs), 90 questions
• Highest Common Factor and Lowest Common Multiple - 4 units (Highest Common Factor, Lowest Common Multiple, Choosing Which One It Is, Working Backwards From the Answer), 76 questions
• Primes and Prime Factorisation - 4 units (What a Prime Is, Finding and Testing Primes, Factor Trees and Index Form, HCF and LCM With Venn Diagrams), 68 questions

Your child works through each lesson on any screen. They play with the tool at the start of a unit, click to reveal each line of a worked example, set the practice questions out on paper, then click to check their own answer.

How it's structured:

• Each of the 13 units opens with a worked example your child clicks through one line at a time, then practice questions graded from easy up to the hardest thing that unit asks for
• 234 questions in total across the 3 lessons, every one with a click-to-reveal answer and a reveal-all option, and some question banks have a New Questions button that deals a fresh set whenever you want more
• Every lesson closes with its own 20 question mixed challenge pulling from all its units, with the questions deliberately unlabelled so your child has to work out what is being asked before they start

12 hands-on tools a printed worksheet cannot give you. A hundred square that shades the multiples of any number so the patterns become obvious. A builder for the times tables nobody learns, 13, 17 and 19. A factor finder that tests each number in order and shows why you can stop halfway. A sum and product machine for the pairs that quadratic factorising needs later. A common factor finder that puts both lists side by side and rings what they share. A multiples ladder that shows which row is behind and by how much. A story sorter that highlights the exact words giving away whether a question wants the HCF or the LCM. A sieve of Eratosthenes your child crosses out themselves, so a prime becomes what survives rather than a list to memorise. A factor tree builder that splits a number down to its primes and writes the answer in index form. A Venn diagram where the shared primes make the HCF and the whole diagram makes the LCM.

Use this if:

• Your child is in Year 4 to Year 11 and factors, multiples and primes still need thinking about rather than recalling
• You are preparing for the 11+ or GCSE Foundation, where factor, multiple, HCF, LCM and prime factor questions come up on almost every paper
• Your child can do both methods but keeps picking the wrong one when the question is a story about buses or party bags
• 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.

Format: 3 interactive digital lessons, links 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.