5th Grade Factors, Multiples and Primes Worksheet — Level 3 — Practice Set 4 — 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 3 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 91.
Answer: 1, 7, 13, 91
2.List all the factors of 75.
Answer: 1, 3, 5, 15, 25, 75
3.List all the factors of 88.
Answer: 1, 2, 4, 8, 11, 22, 44, 88
4.List all the factors of 52.
Answer: 1, 2, 4, 13, 26, 52
Part B: Multiples
5.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
6.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
7.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
8.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 32 and 40.
Answer: 8
- Factors of 32: 1, 2, 4, 8, 16, 32
- Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
- Highest common factor = 8
10.Find the lowest common multiple (LCM) of 22 and 38.
Answer: 418
- Multiples of 22: 22, 44, 66, 88…
- Multiples of 38: 38, 76, 114, 152…
- Lowest common multiple = 418
11.Find the lowest common multiple (LCM) of 30 and 25.
Answer: 150
- Multiples of 30: 30, 60, 90, 120…
- Multiples of 25: 25, 50, 75, 100…
- Lowest common multiple = 150
12.Find the lowest common multiple (LCM) of 31 and 19.
Answer: 589
- Multiples of 31: 31, 62, 93, 124…
- Multiples of 19: 19, 38, 57, 76…
- Lowest common multiple = 589
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