5th Grade Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 5th Grade factors, multiples & primes worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Factors, Multiples & Primes5th Grade Factors, Multiples and Primes Worksheet — Level 1 — Practice Set 4 — Answers
Part A: Factors
1.List all the factors of 13.
Answer: 1, 13
2.List all the factors of 31.
Answer: 1, 31
3.List all the factors of 36.
Answer: 1, 2, 3, 4, 6, 9, 12, 18, 36
4.List all the factors of 28.
Answer: 1, 2, 4, 7, 14, 28
Part B: Multiples
5.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
6.Write the first five multiples of 10.
Answer: 10, 20, 30, 40, 50
7.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
8.Write the first five multiples of 8.
Answer: 8, 16, 24, 32, 40
Part C: Prime or not?
9.23 is a prime number.
Answer: True
23 has only two factors: 1 and 23.
10.40 is a prime number.
Answer: False
40 = 2 × 20, so it is composite.
11.32 is a prime number.
Answer: False
32 = 2 × 16, so it is composite.
12.9 is a prime number.
Answer: False
9 = 3 × 3, 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.
- Celebrate what went well first, then pick one thing to work on next.