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 74.
Answer: 1, 2, 37, 74
2.List all the factors of 45.
Answer: 1, 3, 5, 9, 15, 45
3.List all the factors of 69.
Answer: 1, 3, 23, 69
4.List all the factors of 96.
Answer: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
Part B: Multiples
5.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
6.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
7.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
8.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 31 and 6.
Answer: 186
- Multiples of 31: 31, 62, 93, 124…
- Multiples of 6: 6, 12, 18, 24…
- Lowest common multiple = 186
10.Find the lowest common multiple (LCM) of 34 and 31.
Answer: 1054
- Multiples of 34: 34, 68, 102, 136…
- Multiples of 31: 31, 62, 93, 124…
- Lowest common multiple = 1054
11.Find the lowest common multiple (LCM) of 20 and 29.
Answer: 580
- Multiples of 20: 20, 40, 60, 80…
- Multiples of 29: 29, 58, 87, 116…
- Lowest common multiple = 580
12.Find the lowest common multiple (LCM) of 40 and 32.
Answer: 160
- Multiples of 40: 40, 80, 120, 160…
- Multiples of 32: 32, 64, 96, 128…
- Lowest common multiple = 160
Marking tips
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