Year 7 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 7 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Factors, Multiples & PrimesYear 7 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 24.
Answer: 1, 2, 3, 4, 6, 8, 12, 24
2.List all the factors of 94.
Answer: 1, 2, 47, 94
3.List all the factors of 88.
Answer: 1, 2, 4, 8, 11, 22, 44, 88
4.List all the factors of 16.
Answer: 1, 2, 4, 8, 16
Part B: Multiples
5.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
6.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
7.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
8.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 9 and 8.
Answer: 1
- Factors of 9: 1, 3, 9
- Factors of 8: 1, 2, 4, 8
- Highest common factor = 1
10.Find the lowest common multiple (LCM) of 7 and 39.
Answer: 273
- Multiples of 7: 7, 14, 21, 28…
- Multiples of 39: 39, 78, 117, 156…
- Lowest common multiple = 273
11.Find the highest common factor (HCF) of 6 and 12.
Answer: 6
- Factors of 6: 1, 2, 3, 6
- Factors of 12: 1, 2, 3, 4, 6, 12
- Highest common factor = 6
12.Find the highest common factor (HCF) of 29 and 40.
Answer: 1
- Factors of 29: 1, 29
- Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
- Highest common factor = 1
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