Year 5 Factors, Multiples and Primes Worksheet — Level 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 — Answers
Part A: Factors
1.List all the factors of 30.
Answer: 1, 2, 3, 5, 6, 10, 15, 30
2.List all the factors of 44.
Answer: 1, 2, 4, 11, 22, 44
3.List all the factors of 43.
Answer: 1, 43
4.List all the factors of 81.
Answer: 1, 3, 9, 27, 81
Part B: Multiples
5.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
6.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
7.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
8.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 24 and 31.
Answer: 744
- Multiples of 24: 24, 48, 72, 96…
- Multiples of 31: 31, 62, 93, 124…
- Lowest common multiple = 744
10.Find the highest common factor (HCF) of 24 and 11.
Answer: 1
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Factors of 11: 1, 11
- Highest common factor = 1
11.Find the lowest common multiple (LCM) of 15 and 34.
Answer: 510
- Multiples of 15: 15, 30, 45, 60…
- Multiples of 34: 34, 68, 102, 136…
- Lowest common multiple = 510
12.Find the highest common factor (HCF) of 12 and 29.
Answer: 1
- Factors of 12: 1, 2, 3, 4, 6, 12
- Factors of 29: 1, 29
- Highest common factor = 1
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