5th Grade Factors, Multiples and Primes Worksheet — Level 1 — 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 — Answers
Part A: Factors
1.List all the factors of 25.
Answer: 1, 5, 25
2.List all the factors of 23.
Answer: 1, 23
3.List all the factors of 21.
Answer: 1, 3, 7, 21
4.List all the factors of 33.
Answer: 1, 3, 11, 33
Part B: Multiples
5.Write the first five multiples of 5.
Answer: 5, 10, 15, 20, 25
6.Write the first five multiples of 7.
Answer: 7, 14, 21, 28, 35
7.Write the first five multiples of 3.
Answer: 3, 6, 9, 12, 15
8.Write the first five multiples of 9.
Answer: 9, 18, 27, 36, 45
Part C: Prime or not?
9.8 is a prime number.
Answer: False
8 = 2 × 4, so it is composite.
10.4 is a prime number.
Answer: False
4 = 2 × 2, so it is composite.
11.31 is a prime number.
Answer: True
31 has only two factors: 1 and 31.
12.24 is a prime number.
Answer: False
24 = 2 × 12, 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.