Year 6 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 6 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 6 · Mathematics · Factors, Multiples & PrimesYear 6 Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 3 — Answers
Part A: Factors
1.List all the factors of 55.
Answer: 1, 5, 11, 55
2.List all the factors of 14.
Answer: 1, 2, 7, 14
3.List all the factors of 45.
Answer: 1, 3, 5, 9, 15, 45
4.List all the factors of 65.
Answer: 1, 5, 13, 65
Part B: Multiples
5.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
6.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
7.Write the first five multiples of 3.
Answer: 3, 6, 9, 12, 15
8.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 39 and 17.
Answer: 663
- Multiples of 39: 39, 78, 117, 156…
- Multiples of 17: 17, 34, 51, 68…
- Lowest common multiple = 663
10.Find the highest common factor (HCF) of 23 and 24.
Answer: 1
- Factors of 23: 1, 23
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Highest common factor = 1
11.Find the lowest common multiple (LCM) of 33 and 9.
Answer: 99
- Multiples of 33: 33, 66, 99, 132…
- Multiples of 9: 9, 18, 27, 36…
- Lowest common multiple = 99
12.Find the highest common factor (HCF) of 9 and 30.
Answer: 3
- Factors of 9: 1, 3, 9
- Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
- Highest common factor = 3
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