7th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 7th Grade factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Factors, Multiples & Primes7th Grade Factors, Multiples and Primes Worksheet — Level 2 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 56.
Answer: 1, 2, 4, 7, 8, 14, 28, 56
2.List all the factors of 88.
Answer: 1, 2, 4, 8, 11, 22, 44, 88
3.List all the factors of 49.
Answer: 1, 7, 49
4.List all the factors of 76.
Answer: 1, 2, 4, 19, 38, 76
Part B: Multiples
5.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
6.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
7.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
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 12 and 13.
Answer: 156
- Multiples of 12: 12, 24, 36, 48…
- Multiples of 13: 13, 26, 39, 52…
- Lowest common multiple = 156
10.Find the highest common factor (HCF) of 38 and 10.
Answer: 2
- Factors of 38: 1, 2, 19, 38
- Factors of 10: 1, 2, 5, 10
- Highest common factor = 2
11.Find the highest common factor (HCF) of 18 and 22.
Answer: 2
- Factors of 18: 1, 2, 3, 6, 9, 18
- Factors of 22: 1, 2, 11, 22
- Highest common factor = 2
12.Find the highest common factor (HCF) of 20 and 34.
Answer: 2
- Factors of 20: 1, 2, 4, 5, 10, 20
- Factors of 34: 1, 2, 17, 34
- Highest common factor = 2
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