Year 6 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — 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 4 — Answers
Part A: Factors
1.List all the factors of 29.
Answer: 1, 29
2.List all the factors of 51.
Answer: 1, 3, 17, 51
3.List all the factors of 59.
Answer: 1, 59
4.List all the factors of 48.
Answer: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Part B: Multiples
5.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
6.Write the first five multiples of 3.
Answer: 3, 6, 9, 12, 15
7.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
8.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 29 and 21.
Answer: 609
- Multiples of 29: 29, 58, 87, 116…
- Multiples of 21: 21, 42, 63, 84…
- Lowest common multiple = 609
10.Find the lowest common multiple (LCM) of 24 and 17.
Answer: 408
- Multiples of 24: 24, 48, 72, 96…
- Multiples of 17: 17, 34, 51, 68…
- Lowest common multiple = 408
11.Find the lowest common multiple (LCM) of 13 and 16.
Answer: 208
- Multiples of 13: 13, 26, 39, 52…
- Multiples of 16: 16, 32, 48, 64…
- Lowest common multiple = 208
12.Find the highest common factor (HCF) of 37 and 26.
Answer: 1
- Factors of 37: 1, 37
- Factors of 26: 1, 2, 13, 26
- 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.