Year 5 Factors, Multiples and Primes Worksheet — Level 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 — Answers
Part A: Factors
1.List all the factors of 39.
Answer: 1, 3, 13, 39
2.List all the factors of 61.
Answer: 1, 61
3.List all the factors of 95.
Answer: 1, 5, 19, 95
4.List all the factors of 27.
Answer: 1, 3, 9, 27
Part B: Multiples
5.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
6.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
7.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
8.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 34 and 36.
Answer: 2
- Factors of 34: 1, 2, 17, 34
- Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
- Highest common factor = 2
10.Find the highest common factor (HCF) of 7 and 14.
Answer: 7
- Factors of 7: 1, 7
- Factors of 14: 1, 2, 7, 14
- Highest common factor = 7
11.Find the highest common factor (HCF) of 18 and 39.
Answer: 3
- Factors of 18: 1, 2, 3, 6, 9, 18
- Factors of 39: 1, 3, 13, 39
- Highest common factor = 3
12.Find the lowest common multiple (LCM) of 29 and 32.
Answer: 928
- Multiples of 29: 29, 58, 87, 116…
- Multiples of 32: 32, 64, 96, 128…
- Lowest common multiple = 928
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