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 63.
Answer: 1, 3, 7, 9, 21, 63
2.List all the factors of 76.
Answer: 1, 2, 4, 19, 38, 76
3.List all the factors of 26.
Answer: 1, 2, 13, 26
4.List all the factors of 88.
Answer: 1, 2, 4, 8, 11, 22, 44, 88
Part B: Multiples
5.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
6.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
7.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
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 35 and 15.
Answer: 5
- Factors of 35: 1, 5, 7, 35
- Factors of 15: 1, 3, 5, 15
- Highest common factor = 5
10.Find the lowest common multiple (LCM) of 13 and 21.
Answer: 273
- Multiples of 13: 13, 26, 39, 52…
- Multiples of 21: 21, 42, 63, 84…
- Lowest common multiple = 273
11.Find the highest common factor (HCF) of 35 and 24.
Answer: 1
- Factors of 35: 1, 5, 7, 35
- Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
- Highest common factor = 1
12.Find the lowest common multiple (LCM) of 36 and 28.
Answer: 252
- Multiples of 36: 36, 72, 108, 144…
- Multiples of 28: 28, 56, 84, 112…
- Lowest common multiple = 252
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