Year 6 Factors, Multiples and Primes Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the Year 6 factors, multiples & primes worksheet.
Year 6 · Mathematics · Factors, Multiples & Primes
Year 6 Factors, Multiples and Primes Worksheet — Level 3 — Answers
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Part A — Factors
1.List all the factors of 73.
Answer: 1, 73
2.List all the factors of 38.
Answer: 1, 2, 19, 38
3.List all the factors of 77.
Answer: 1, 7, 11, 77
4.List all the factors of 69.
Answer: 1, 3, 23, 69
Part B — Multiples
5.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
6.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
7.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
8.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
Part C — HCF and LCM
9.Find the lowest common multiple (LCM) of 28 and 19.
Answer: 532
- Multiples of 28: 28, 56, 84, 112…
- Multiples of 19: 19, 38, 57, 76…
- Lowest common multiple = 532
10.Find the lowest common multiple (LCM) of 16 and 20.
Answer: 80
- Multiples of 16: 16, 32, 48, 64…
- Multiples of 20: 20, 40, 60, 80…
- Lowest common multiple = 80
11.Find the lowest common multiple (LCM) of 33 and 36.
Answer: 396
- Multiples of 33: 33, 66, 99, 132…
- Multiples of 36: 36, 72, 108, 144…
- Lowest common multiple = 396
12.Find the lowest common multiple (LCM) of 33 and 22.
Answer: 66
- Multiples of 33: 33, 66, 99, 132…
- Multiples of 22: 22, 44, 66, 88…
- Lowest common multiple = 66
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