Year 4 Factors, Multiples and Primes Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the Year 4 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 4 · Mathematics · Factors, Multiples & PrimesYear 4 Factors, Multiples and Primes Worksheet — Level 3 — Answers
Part A: Factors
1.List all the factors of 80.
Answer: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
2.List all the factors of 83.
Answer: 1, 83
3.List all the factors of 68.
Answer: 1, 2, 4, 17, 34, 68
4.List all the factors of 17.
Answer: 1, 17
Part B: Multiples
5.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
6.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
7.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
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 29 and 26.
Answer: 1
- Factors of 29: 1, 29
- Factors of 26: 1, 2, 13, 26
- Highest common factor = 1
10.Find the highest common factor (HCF) of 32 and 16.
Answer: 16
- Factors of 32: 1, 2, 4, 8, 16, 32
- Factors of 16: 1, 2, 4, 8, 16
- Highest common factor = 16
11.Find the highest common factor (HCF) of 12 and 30.
Answer: 6
- Factors of 12: 1, 2, 3, 4, 6, 12
- Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
- Highest common factor = 6
12.Find the highest common factor (HCF) of 6 and 6.
Answer: 6
- Factors of 6: 1, 2, 3, 6
- Factors of 6: 1, 2, 3, 6
- Highest common factor = 6
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