Year 7 Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 7 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Factors, Multiples & PrimesYear 7 Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 3 — Answers
Part A: Factors
1.List all the factors of 14.
Answer: 1, 2, 7, 14
2.List all the factors of 34.
Answer: 1, 2, 17, 34
3.List all the factors of 13.
Answer: 1, 13
4.List all the factors of 19.
Answer: 1, 19
Part B: Multiples
5.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
6.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
7.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
8.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
Part C: Prime or not?
9.45 is a prime number.
Answer: False
45 = 3 × 15, so it is composite.
10.14 is a prime number.
Answer: False
14 = 2 × 7, so it is composite.
11.49 is a prime number.
Answer: False
49 = 7 × 7, so it is composite.
12.2 is a prime number.
Answer: True
2 has only two factors: 1 and 2.
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.