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 76.
Answer: 1, 2, 4, 19, 38, 76
2.List all the factors of 72.
Answer: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
3.List all the factors of 85.
Answer: 1, 5, 17, 85
4.List all the factors of 51.
Answer: 1, 3, 17, 51
Part B: Multiples
5.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
6.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
7.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
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 20 and 37.
Answer: 740
- Multiples of 20: 20, 40, 60, 80…
- Multiples of 37: 37, 74, 111, 148…
- Lowest common multiple = 740
10.Find the lowest common multiple (LCM) of 17 and 35.
Answer: 595
- Multiples of 17: 17, 34, 51, 68…
- Multiples of 35: 35, 70, 105, 140…
- Lowest common multiple = 595
11.Find the lowest common multiple (LCM) of 39 and 31.
Answer: 1209
- Multiples of 39: 39, 78, 117, 156…
- Multiples of 31: 31, 62, 93, 124…
- Lowest common multiple = 1209
12.Find the lowest common multiple (LCM) of 18 and 27.
Answer: 54
- Multiples of 18: 18, 36, 54, 72…
- Multiples of 27: 27, 54, 81, 108…
- Lowest common multiple = 54
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.