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 89.
Answer: 1, 89
2.List all the factors of 76.
Answer: 1, 2, 4, 19, 38, 76
3.List all the factors of 87.
Answer: 1, 3, 29, 87
4.List all the factors of 35.
Answer: 1, 5, 7, 35
Part B: Multiples
5.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
6.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
7.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
8.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 29 and 15.
Answer: 1
- Factors of 29: 1, 29
- Factors of 15: 1, 3, 5, 15
- Highest common factor = 1
10.Find the lowest common multiple (LCM) of 11 and 40.
Answer: 440
- Multiples of 11: 11, 22, 33, 44…
- Multiples of 40: 40, 80, 120, 160…
- Lowest common multiple = 440
11.Find the lowest common multiple (LCM) of 10 and 9.
Answer: 90
- Multiples of 10: 10, 20, 30, 40…
- Multiples of 9: 9, 18, 27, 36…
- Lowest common multiple = 90
12.Find the highest common factor (HCF) of 24 and 12.
Answer: 12
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Factors of 12: 1, 2, 3, 4, 6, 12
- Highest common factor = 12
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