5th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 5th Grade factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Factors, Multiples & Primes5th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 2 — Answers
Part A: Factors
1.List all the factors of 54.
Answer: 1, 2, 3, 6, 9, 18, 27, 54
2.List all the factors of 62.
Answer: 1, 2, 31, 62
3.List all the factors of 100.
Answer: 1, 2, 4, 5, 10, 20, 25, 50, 100
4.List all the factors of 24.
Answer: 1, 2, 3, 4, 6, 8, 12, 24
Part B: Multiples
5.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
6.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
7.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
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 20 and 9.
Answer: 180
- Multiples of 20: 20, 40, 60, 80…
- Multiples of 9: 9, 18, 27, 36…
- Lowest common multiple = 180
10.Find the highest common factor (HCF) of 21 and 25.
Answer: 1
- Factors of 21: 1, 3, 7, 21
- Factors of 25: 1, 5, 25
- Highest common factor = 1
11.Find the highest common factor (HCF) of 36 and 21.
Answer: 3
- Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
- Factors of 21: 1, 3, 7, 21
- Highest common factor = 3
12.Find the lowest common multiple (LCM) of 15 and 22.
Answer: 330
- Multiples of 15: 15, 30, 45, 60…
- Multiples of 22: 22, 44, 66, 88…
- Lowest common multiple = 330
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