Year 6 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 6 factors, multiples & primes worksheet.
Year 6 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 2 — Answers
Part A: Factors
1.List all the factors of 40.
Answer: 1, 2, 4, 5, 8, 10, 20, 40
2.List all the factors of 17.
Answer: 1, 17
3.List all the factors of 53.
Answer: 1, 53
4.List all the factors of 70.
Answer: 1, 2, 5, 7, 10, 14, 35, 70
Part B: Multiples
5.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
6.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
7.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
8.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 9 and 35.
Answer: 1
- Factors of 9: 1, 3, 9
- Factors of 35: 1, 5, 7, 35
- Highest common factor = 1
10.Find the highest common factor (HCF) of 10 and 9.
Answer: 1
- Factors of 10: 1, 2, 5, 10
- Factors of 9: 1, 3, 9
- Highest common factor = 1
11.Find the lowest common multiple (LCM) of 36 and 36.
Answer: 36
- Multiples of 36: 36, 72, 108, 144…
- Multiples of 36: 36, 72, 108, 144…
- Lowest common multiple = 36
12.Find the lowest common multiple (LCM) of 28 and 35.
Answer: 140
- Multiples of 28: 28, 56, 84, 112…
- Multiples of 35: 35, 70, 105, 140…
- Lowest common multiple = 140
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.