Factors and Multiples — Interactive Lesson (Ages 14–16)

Are factor pairs and multiples still shaky? This 31-slide interactive lesson revises factors and multiples from the ground up, ready for HCF, LCM and prime factor work.

Securing Factors and Multiples for GCSE Maths

Students build on their times tables to find the multiples of whole numbers, and learn that a factor of a number divides into it without a remainder. They discover that factors come in pairs, such as 1 and 30, 2 and 15, 3 and 10, and 5 and 6 for 30, and then find the factor pairs of numbers such as 56, 81, 18 and 63. They use a 1–100 number table and finish by finding common factors of two or more numbers.

What’s Included

• 31-slide interactive lesson on factors and multiples
• Three learning objectives: multiples, factor pairs and common factors
• Worked examples, including all the factor pairs of 30
• Click-the-factor-pairs questions for 56, 81, 18 and 63
• A 1–100 number table activity and self-marking questions

Key Benefits for Students

• Builds secure understanding of factor pairs
• Connects factors to division and times tables
• Prepares students for HCF, LCM and prime factors
• Instant feedback on answer questions

Why Teachers Love It

• No prep — ready for whole-class teaching on an interactive whiteboard
• A useful foundation or catch-up lesson for GCSE number
• Self-marking questions support independent practice
• Suits teaching, revision and homework
• Works well as a starter before harder number topics

Love this? You’ll love…

• HCF And LCM — Interactive Lesson (Year 10)
• Laws of Indices — Interactive Lesson (GCSE, Ages 14–16)
• Rounding to Significant Figures — Interactive Lesson & Worksheet (Ages 14–16)

A dependable addition to a GCSE number topic, giving students a firm grounding in the language of factors and multiples. Confidence here makes highest common factor, lowest common multiple and prime factor questions far more approachable.

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FAQ

What year group is this for? Years 10–11 (ages 14–16); it also suits any student revising the basics.

Does it cover common factors? Yes — it finishes with finding common factors of two or more numbers.

Is it self-marking? Yes, with instant feedback on the questions.