Primary 4 Mathematics · Chapter 2 · Practice sheet

Lesson 2.2: Factors

Name:Date:Marks: / 15

Section A · Multiple choice 4 marks

1. Which of these is a factor of 36?1 mark

(A) 8(B) 9(C) 7(D) 10

2. Which of these is a prime number?1 mark

(A) 21(B) 27(C) 29(D) 33

3. Which number has exactly 6 factors?1 mark

(A) 16(B) 15(C) 10(D) 12

4. Which of these is NOT a factor of 24?1 mark

(A) 9(B) 6(C) 8(D) 12

Section B · Write your answer 11 marks

5. List all the factors of 20.1 mark

6. Is 51 a prime number? Give a reason.1 mark

7. List all the square numbers between 10 and 50.1 mark

8. Ali arranges 24 counters in 4 rows of 6, as shown. He rearranges them into rows of 8. How many rows does he make?1 mark

9. How many factors does 49 have?1 mark

10. I am a square number between 10 and 30. I have exactly 3 factors. What number am I?2 marks

11. Mei arranges 36 chairs in equal rows. There is more than 1 row and each row has at least 4 chairs. List all the possible numbers of chairs in a row.2 marks

12. Ravi lists all the factors of 40. Mei lists all the factors of 45. How many more factors are in Ravi's list than Mei's?2 marks

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