4th Grade Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 3 — 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 1 — Practice Set 3 — Answers
Part A: Factors
1.List all the factors of 27.
Answer: 1, 3, 9, 27
2.List all the factors of 30.
Answer: 1, 2, 3, 5, 6, 10, 15, 30
3.List all the factors of 29.
Answer: 1, 29
4.List all the factors of 19.
Answer: 1, 19
Part B: Multiples
5.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
6.Write the first five multiples of 12.
Answer: 12, 24, 36, 48, 60
7.Write the first five multiples of 11.
Answer: 11, 22, 33, 44, 55
8.Write the first five multiples of 6.
Answer: 6, 12, 18, 24, 30
Part C: Prime or not?
9.24 is a prime number.
Answer: False
24 = 2 × 12, so it is composite.
10.43 is a prime number.
Answer: True
43 has only two factors: 1 and 43.
11.13 is a prime number.
Answer: True
13 has only two factors: 1 and 13.
12.45 is a prime number.
Answer: False
45 = 3 × 15, so it is composite.
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
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