6th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 6th Grade factors, multiples & primes worksheet.
6th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 3 — Answers
Part A: Factors
1.List all the factors of 25.
Answer: 1, 5, 25
2.List all the factors of 22.
Answer: 1, 2, 11, 22
3.List all the factors of 56.
Answer: 1, 2, 4, 7, 8, 14, 28, 56
4.List all the factors of 89.
Answer: 1, 89
Part B: Multiples
5.Write the first five multiples of 3.
Answer: 3, 6, 9, 12, 15
6.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
7.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
8.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 24 and 36.
Answer: 12
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
- Highest common factor = 12
10.Find the lowest common multiple (LCM) of 13 and 22.
Answer: 286
- Multiples of 13: 13, 26, 39, 52…
- Multiples of 22: 22, 44, 66, 88…
- Lowest common multiple = 286
11.Find the highest common factor (HCF) of 9 and 37.
Answer: 1
- Factors of 9: 1, 3, 9
- Factors of 37: 1, 37
- Highest common factor = 1
12.Find the highest common factor (HCF) of 39 and 7.
Answer: 1
- Factors of 39: 1, 3, 13, 39
- Factors of 7: 1, 7
- 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.