Year 6 Factors, Multiples and Primes Worksheet — Level 3 — 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 3 — Practice Set 2 — Answers
Part A: Factors
1.List all the factors of 58.
Answer: 1, 2, 29, 58
2.List all the factors of 22.
Answer: 1, 2, 11, 22
3.List all the factors of 59.
Answer: 1, 59
4.List all the factors of 32.
Answer: 1, 2, 4, 8, 16, 32
Part B: Multiples
5.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
6.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
7.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
8.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 24 and 7.
Answer: 168
- Multiples of 24: 24, 48, 72, 96…
- Multiples of 7: 7, 14, 21, 28…
- Lowest common multiple = 168
10.Find the highest common factor (HCF) of 11 and 15.
Answer: 1
- Factors of 11: 1, 11
- Factors of 15: 1, 3, 5, 15
- Highest common factor = 1
11.Find the lowest common multiple (LCM) of 14 and 17.
Answer: 238
- Multiples of 14: 14, 28, 42, 56…
- Multiples of 17: 17, 34, 51, 68…
- Lowest common multiple = 238
12.Find the highest common factor (HCF) of 38 and 25.
Answer: 1
- Factors of 38: 1, 2, 19, 38
- Factors of 25: 1, 5, 25
- Highest common factor = 1
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.