5th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 5th Grade factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Factors, Multiples & Primes5th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 36.
Answer: 1, 2, 3, 4, 6, 9, 12, 18, 36
2.List all the factors of 65.
Answer: 1, 5, 13, 65
3.List all the factors of 91.
Answer: 1, 7, 13, 91
4.List all the factors of 74.
Answer: 1, 2, 37, 74
Part B: Multiples
5.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
6.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
7.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
8.Write the first five multiples of 3.
Answer: 3, 6, 9, 12, 15
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 30 and 28.
Answer: 2
- Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
- Factors of 28: 1, 2, 4, 7, 14, 28
- Highest common factor = 2
10.Find the lowest common multiple (LCM) of 35 and 11.
Answer: 385
- Multiples of 35: 35, 70, 105, 140…
- Multiples of 11: 11, 22, 33, 44…
- Lowest common multiple = 385
11.Find the lowest common multiple (LCM) of 29 and 18.
Answer: 522
- Multiples of 29: 29, 58, 87, 116…
- Multiples of 18: 18, 36, 54, 72…
- Lowest common multiple = 522
12.Find the lowest common multiple (LCM) of 17 and 21.
Answer: 357
- Multiples of 17: 17, 34, 51, 68…
- Multiples of 21: 21, 42, 63, 84…
- Lowest common multiple = 357
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.