Year 5 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 5 factors, multiples & primes worksheet.
Year 5 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 52.
Answer: 1, 2, 4, 13, 26, 52
2.List all the factors of 22.
Answer: 1, 2, 11, 22
3.List all the factors of 53.
Answer: 1, 53
4.List all the factors of 55.
Answer: 1, 5, 11, 55
Part B: Multiples
5.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
6.Write the first five multiples of 3.
Answer: 3, 6, 9, 12, 15
7.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
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 24 and 19.
Answer: 1
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Factors of 19: 1, 19
- Highest common factor = 1
10.Find the highest common factor (HCF) of 35 and 10.
Answer: 5
- Factors of 35: 1, 5, 7, 35
- Factors of 10: 1, 2, 5, 10
- Highest common factor = 5
11.Find the highest common factor (HCF) of 17 and 32.
Answer: 1
- Factors of 17: 1, 17
- Factors of 32: 1, 2, 4, 8, 16, 32
- Highest common factor = 1
12.Find the lowest common multiple (LCM) of 9 and 18.
Answer: 18
- Multiples of 9: 9, 18, 27, 36…
- Multiples of 18: 18, 36, 54, 72…
- Lowest common multiple = 18
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.