Year 8 Factors, Multiples and Primes Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 8 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Factors, Multiples & PrimesYear 8 Factors, Multiples and Primes Worksheet — Level 2 — Answers
Part A: Factors
1.List all the factors of 59.
Answer: 1, 59
2.List all the factors of 27.
Answer: 1, 3, 9, 27
3.List all the factors of 71.
Answer: 1, 71
4.List all the factors of 79.
Answer: 1, 79
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 5.
Answer: 5, 10, 15, 20, 25
8.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 32 and 18.
Answer: 2
- Factors of 32: 1, 2, 4, 8, 16, 32
- Factors of 18: 1, 2, 3, 6, 9, 18
- Highest common factor = 2
10.Find the lowest common multiple (LCM) of 26 and 24.
Answer: 312
- Multiples of 26: 26, 52, 78, 104…
- Multiples of 24: 24, 48, 72, 96…
- Lowest common multiple = 312
11.Find the highest common factor (HCF) of 38 and 34.
Answer: 2
- Factors of 38: 1, 2, 19, 38
- Factors of 34: 1, 2, 17, 34
- Highest common factor = 2
12.Find the lowest common multiple (LCM) of 13 and 30.
Answer: 390
- Multiples of 13: 13, 26, 39, 52…
- Multiples of 30: 30, 60, 90, 120…
- Lowest common multiple = 390
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