4th Grade Factors, Multiples and Primes Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 4th Grade factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheet4th Grade · Mathematics · Factors, Multiples & Primes4th Grade Factors, Multiples and Primes Worksheet — Level 2 — Answers
Part A: Factors
1.List all the factors of 85.
Answer: 1, 5, 17, 85
2.List all the factors of 23.
Answer: 1, 23
3.List all the factors of 30.
Answer: 1, 2, 3, 5, 6, 10, 15, 30
4.List all the factors of 59.
Answer: 1, 59
Part B: Multiples
5.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
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 3.
Answer: 3, 6, 9, 12, 15
Part C: HCF and LCM
9.Find the highest common factor (HCF) of 40 and 11.
Answer: 1
- Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
- Factors of 11: 1, 11
- Highest common factor = 1
10.Find the highest common factor (HCF) of 18 and 15.
Answer: 3
- Factors of 18: 1, 2, 3, 6, 9, 18
- Factors of 15: 1, 3, 5, 15
- Highest common factor = 3
11.Find the lowest common multiple (LCM) of 7 and 14.
Answer: 14
- Multiples of 7: 7, 14, 21, 28…
- Multiples of 14: 14, 28, 42, 56…
- Lowest common multiple = 14
12.Find the highest common factor (HCF) of 39 and 7.
Answer: 1
- Factors of 39: 1, 3, 13, 39
- Factors of 7: 1, 7
- Highest common factor = 1
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