Year 5 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 5 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · Factors, Multiples & PrimesYear 5 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 2 — Answers
Part A: Factors
1.List all the factors of 17.
Answer: 1, 17
2.List all the factors of 15.
Answer: 1, 3, 5, 15
3.List all the factors of 68.
Answer: 1, 2, 4, 17, 34, 68
4.List all the factors of 12.
Answer: 1, 2, 3, 4, 6, 12
Part B: Multiples
5.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
6.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
7.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
8.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 35 and 27.
Answer: 945
- Multiples of 35: 35, 70, 105, 140…
- Multiples of 27: 27, 54, 81, 108…
- Lowest common multiple = 945
10.Find the highest common factor (HCF) of 26 and 28.
Answer: 2
- Factors of 26: 1, 2, 13, 26
- Factors of 28: 1, 2, 4, 7, 14, 28
- Highest common factor = 2
11.Find the highest common factor (HCF) of 14 and 33.
Answer: 1
- Factors of 14: 1, 2, 7, 14
- Factors of 33: 1, 3, 11, 33
- Highest common factor = 1
12.Find the highest common factor (HCF) of 17 and 13.
Answer: 1
- Factors of 17: 1, 17
- Factors of 13: 1, 13
- Highest common factor = 1
Marking tips
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