Year 6 Factors, Multiples and Primes Worksheet — Level 3 — 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 3 — Practice Set 3 — Answers
Part A: Factors
1.List all the factors of 50.
Answer: 1, 2, 5, 10, 25, 50
2.List all the factors of 63.
Answer: 1, 3, 7, 9, 21, 63
3.List all the factors of 74.
Answer: 1, 2, 37, 74
4.List all the factors of 39.
Answer: 1, 3, 13, 39
Part B: Multiples
5.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
6.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
7.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
8.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 18 and 40.
Answer: 360
- Multiples of 18: 18, 36, 54, 72…
- Multiples of 40: 40, 80, 120, 160…
- Lowest common multiple = 360
10.Find the lowest common multiple (LCM) of 13 and 9.
Answer: 117
- Multiples of 13: 13, 26, 39, 52…
- Multiples of 9: 9, 18, 27, 36…
- Lowest common multiple = 117
11.Find the lowest common multiple (LCM) of 27 and 14.
Answer: 378
- Multiples of 27: 27, 54, 81, 108…
- Multiples of 14: 14, 28, 42, 56…
- Lowest common multiple = 378
12.Find the highest common factor (HCF) of 30 and 29.
Answer: 1
- Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
- Factors of 29: 1, 29
- Highest common factor = 1
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