Year 5 Factors, Multiples and Primes Worksheet — Level 3 — 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 3 — Practice Set 3 — Answers
Part A: Factors
1.List all the factors of 66.
Answer: 1, 2, 3, 6, 11, 22, 33, 66
2.List all the factors of 30.
Answer: 1, 2, 3, 5, 6, 10, 15, 30
3.List all the factors of 73.
Answer: 1, 73
4.List all the factors of 52.
Answer: 1, 2, 4, 13, 26, 52
Part B: Multiples
5.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
6.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
7.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
8.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 40 and 23.
Answer: 1
- Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
- Factors of 23: 1, 23
- Highest common factor = 1
10.Find the highest common factor (HCF) of 24 and 15.
Answer: 3
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Factors of 15: 1, 3, 5, 15
- Highest common factor = 3
11.Find the lowest common multiple (LCM) of 29 and 33.
Answer: 957
- Multiples of 29: 29, 58, 87, 116…
- Multiples of 33: 33, 66, 99, 132…
- Lowest common multiple = 957
12.Find the highest common factor (HCF) of 27 and 10.
Answer: 1
- Factors of 27: 1, 3, 9, 27
- Factors of 10: 1, 2, 5, 10
- Highest common factor = 1
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