7th Grade Factors, Multiples and Primes Worksheet — Level 2 — 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 — Answers
Part A: Factors
1.List all the factors of 43.
Answer: 1, 43
2.List all the factors of 88.
Answer: 1, 2, 4, 8, 11, 22, 44, 88
3.List all the factors of 50.
Answer: 1, 2, 5, 10, 25, 50
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 5.
Answer: 5, 10, 15, 20, 25
6.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
7.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
8.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 14 and 18.
Answer: 2
- Factors of 14: 1, 2, 7, 14
- Factors of 18: 1, 2, 3, 6, 9, 18
- Highest common factor = 2
10.Find the lowest common multiple (LCM) of 6 and 16.
Answer: 48
- Multiples of 6: 6, 12, 18, 24…
- Multiples of 16: 16, 32, 48, 64…
- Lowest common multiple = 48
11.Find the highest common factor (HCF) of 14 and 22.
Answer: 2
- Factors of 14: 1, 2, 7, 14
- Factors of 22: 1, 2, 11, 22
- Highest common factor = 2
12.Find the highest common factor (HCF) of 13 and 29.
Answer: 1
- Factors of 13: 1, 13
- Factors of 29: 1, 29
- Highest common factor = 1
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