Year 6 Factors, Multiples and Primes Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 6 factors, multiples & primes worksheet.
Year 6 Factors, Multiples and Primes Worksheet — Level 1 — Answers
Part A: Factors
1.List all the factors of 24.
Answer: 1, 2, 3, 4, 6, 8, 12, 24
2.List all the factors of 20.
Answer: 1, 2, 4, 5, 10, 20
3.List all the factors of 18.
Answer: 1, 2, 3, 6, 9, 18
4.List all the factors of 33.
Answer: 1, 3, 11, 33
Part B: Multiples
5.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
6.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
7.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
8.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
Part C: Prime or not?
9.6 is a prime number.
Answer: False
6 = 2 × 3, so it is composite.
10.28 is a prime number.
Answer: False
28 = 2 × 14, so it is composite.
11.3 is a prime number.
Answer: True
3 has only two factors: 1 and 3.
12.32 is a prime number.
Answer: False
32 = 2 × 16, so it is composite.
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.