Year 7 Factors, Multiples and Primes Worksheet — Level 2 — 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 — 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 92.
Answer: 1, 2, 4, 23, 46, 92
3.List all the factors of 18.
Answer: 1, 2, 3, 6, 9, 18
4.List all the factors of 31.
Answer: 1, 31
Part B: Multiples
5.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
6.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
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 17 and 21.
Answer: 1
- Factors of 17: 1, 17
- Factors of 21: 1, 3, 7, 21
- Highest common factor = 1
10.Find the highest common factor (HCF) of 27 and 27.
Answer: 27
- Factors of 27: 1, 3, 9, 27
- Factors of 27: 1, 3, 9, 27
- Highest common factor = 27
11.Find the highest common factor (HCF) of 19 and 32.
Answer: 1
- Factors of 19: 1, 19
- Factors of 32: 1, 2, 4, 8, 16, 32
- Highest common factor = 1
12.Find the highest common factor (HCF) of 33 and 17.
Answer: 1
- Factors of 33: 1, 3, 11, 33
- Factors of 17: 1, 17
- Highest common factor = 1
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