6th Grade Factors, Multiples and Primes Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 6th Grade factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheet6th Grade · Mathematics · Factors, Multiples & Primes6th Grade Factors, Multiples and Primes Worksheet — Level 3 — Practice Set 2 — Answers
Part A: Factors
1.List all the factors of 28.
Answer: 1, 2, 4, 7, 14, 28
2.List all the factors of 82.
Answer: 1, 2, 41, 82
3.List all the factors of 78.
Answer: 1, 2, 3, 6, 13, 26, 39, 78
4.List all the factors of 89.
Answer: 1, 89
Part B: Multiples
5.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
6.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
7.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
8.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
Part C: HCF and LCM
9.Find the lowest common multiple (LCM) of 29 and 25.
Answer: 725
- Multiples of 29: 29, 58, 87, 116…
- Multiples of 25: 25, 50, 75, 100…
- Lowest common multiple = 725
10.Find the highest common factor (HCF) of 40 and 38.
Answer: 2
- Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
- Factors of 38: 1, 2, 19, 38
- Highest common factor = 2
11.Find the highest common factor (HCF) of 31 and 19.
Answer: 1
- Factors of 31: 1, 31
- Factors of 19: 1, 19
- Highest common factor = 1
12.Find the lowest common multiple (LCM) of 20 and 19.
Answer: 380
- Multiples of 20: 20, 40, 60, 80…
- Multiples of 19: 19, 38, 57, 76…
- Lowest common multiple = 380
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