Year 4 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 4 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 4 · Mathematics · Factors, Multiples & PrimesYear 4 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 43.
Answer: 1, 43
2.List all the factors of 52.
Answer: 1, 2, 4, 13, 26, 52
3.List all the factors of 26.
Answer: 1, 2, 13, 26
4.List all the factors of 30.
Answer: 1, 2, 3, 5, 6, 10, 15, 30
Part B: Multiples
5.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
6.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
7.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
8.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 39 and 15.
Answer: 3
- Factors of 39: 1, 3, 13, 39
- Factors of 15: 1, 3, 5, 15
- Highest common factor = 3
10.Find the lowest common multiple (LCM) of 6 and 31.
Answer: 186
- Multiples of 6: 6, 12, 18, 24…
- Multiples of 31: 31, 62, 93, 124…
- Lowest common multiple = 186
11.Find the highest common factor (HCF) of 6 and 18.
Answer: 6
- Factors of 6: 1, 2, 3, 6
- Factors of 18: 1, 2, 3, 6, 9, 18
- Highest common factor = 6
12.Find the lowest common multiple (LCM) of 36 and 26.
Answer: 468
- Multiples of 36: 36, 72, 108, 144…
- Multiples of 26: 26, 52, 78, 104…
- Lowest common multiple = 468
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.