Year 6 Factors, Multiples and Primes Worksheet — Level 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 3 — Answers
Part A: Factors
1.List all the factors of 27.
Answer: 1, 3, 9, 27
2.List all the factors of 79.
Answer: 1, 79
3.List all the factors of 51.
Answer: 1, 3, 17, 51
4.List all the factors of 57.
Answer: 1, 3, 19, 57
Part B: Multiples
5.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
6.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
7.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
8.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 17 and 18.
Answer: 1
- Factors of 17: 1, 17
- Factors of 18: 1, 2, 3, 6, 9, 18
- Highest common factor = 1
10.Find the lowest common multiple (LCM) of 29 and 21.
Answer: 609
- Multiples of 29: 29, 58, 87, 116…
- Multiples of 21: 21, 42, 63, 84…
- Lowest common multiple = 609
11.Find the lowest common multiple (LCM) of 9 and 17.
Answer: 153
- Multiples of 9: 9, 18, 27, 36…
- Multiples of 17: 17, 34, 51, 68…
- Lowest common multiple = 153
12.Find the lowest common multiple (LCM) of 39 and 11.
Answer: 429
- Multiples of 39: 39, 78, 117, 156…
- Multiples of 11: 11, 22, 33, 44…
- Lowest common multiple = 429
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