5th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 3 — 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 3 — Answers
Part A: Factors
1.List all the factors of 30.
Answer: 1, 2, 3, 5, 6, 10, 15, 30
2.List all the factors of 92.
Answer: 1, 2, 4, 23, 46, 92
3.List all the factors of 86.
Answer: 1, 2, 43, 86
4.List all the factors of 55.
Answer: 1, 5, 11, 55
Part B: Multiples
5.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
6.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
7.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
8.Write the first five multiples of 4.
Answer: 4, 8, 12, 16, 20
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 31 and 38.
Answer: 1
- Factors of 31: 1, 31
- Factors of 38: 1, 2, 19, 38
- Highest common factor = 1
10.Find the highest common factor (HCF) of 19 and 19.
Answer: 19
- Factors of 19: 1, 19
- Factors of 19: 1, 19
- Highest common factor = 19
11.Find the highest common factor (HCF) of 17 and 9.
Answer: 1
- Factors of 17: 1, 17
- Factors of 9: 1, 3, 9
- Highest common factor = 1
12.Find the lowest common multiple (LCM) of 40 and 7.
Answer: 280
- Multiples of 40: 40, 80, 120, 160…
- Multiples of 7: 7, 14, 21, 28…
- Lowest common multiple = 280
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