Year 5 Factors, Multiples and Primes Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 5 factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · Factors, Multiples & PrimesYear 5 Factors, Multiples and Primes Worksheet — Level 3 — Practice Set 2 — Answers
Part A: Factors
1.List all the factors of 26.
Answer: 1, 2, 13, 26
2.List all the factors of 59.
Answer: 1, 59
3.List all the factors of 86.
Answer: 1, 2, 43, 86
4.List all the factors of 14.
Answer: 1, 2, 7, 14
Part B: Multiples
5.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
6.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
7.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
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 36 and 24.
Answer: 72
- Multiples of 36: 36, 72, 108, 144…
- Multiples of 24: 24, 48, 72, 96…
- Lowest common multiple = 72
10.Find the highest common factor (HCF) of 11 and 21.
Answer: 1
- Factors of 11: 1, 11
- Factors of 21: 1, 3, 7, 21
- Highest common factor = 1
11.Find the lowest common multiple (LCM) of 39 and 7.
Answer: 273
- Multiples of 39: 39, 78, 117, 156…
- Multiples of 7: 7, 14, 21, 28…
- Lowest common multiple = 273
12.Find the lowest common multiple (LCM) of 19 and 34.
Answer: 646
- Multiples of 19: 19, 38, 57, 76…
- Multiples of 34: 34, 68, 102, 136…
- Lowest common multiple = 646
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