Year 6 Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 6 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 6 · Mathematics · Factors, Multiples & PrimesYear 6 Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 3 — Answers
Part A: Factors
1.List all the factors of 33.
Answer: 1, 3, 11, 33
2.List all the factors of 26.
Answer: 1, 2, 13, 26
3.List all the factors of 28.
Answer: 1, 2, 4, 7, 14, 28
4.List all the factors of 15.
Answer: 1, 3, 5, 15
Part B: Multiples
5.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
6.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
7.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
8.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
Part C: Prime or not?
9.20 is a prime number.
Answer: False
20 = 2 × 10, so it is composite.
10.35 is a prime number.
Answer: False
35 = 5 × 7, so it is composite.
11.7 is a prime number.
Answer: True
7 has only two factors: 1 and 7.
12.22 is a prime number.
Answer: False
22 = 2 × 11, 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.