Year 5 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 3 — 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 3 — Answers
Part A: Factors
1.List all the factors of 84.
Answer: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
2.List all the factors of 60.
Answer: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
3.List all the factors of 36.
Answer: 1, 2, 3, 4, 6, 9, 12, 18, 36
4.List all the factors of 23.
Answer: 1, 23
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 7.
Answer: 7, 14, 21, 28, 35
8.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 16 and 9.
Answer: 144
- Multiples of 16: 16, 32, 48, 64…
- Multiples of 9: 9, 18, 27, 36…
- Lowest common multiple = 144
10.Find the highest common factor (HCF) of 6 and 31.
Answer: 1
- Factors of 6: 1, 2, 3, 6
- Factors of 31: 1, 31
- Highest common factor = 1
11.Find the highest common factor (HCF) of 39 and 9.
Answer: 3
- Factors of 39: 1, 3, 13, 39
- Factors of 9: 1, 3, 9
- Highest common factor = 3
12.Find the highest common factor (HCF) of 6 and 32.
Answer: 2
- Factors of 6: 1, 2, 3, 6
- Factors of 32: 1, 2, 4, 8, 16, 32
- Highest common factor = 2
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