Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 3
104 practice questions
Topics covered
Practice questions
1–10 of 104
Question 1
1 mark · Easy
Answer and see the solution →Write down all the factors of 14.
Question 2
1 mark · Easy
Answer and check →Which of these numbers is a prime number?
- A.9
- B.11
- C.15
- D.21
Question 3
1 mark · Easy
Answer and check →Write down the smallest positive multiple of 8 that is greater than 20.
Question 4
1 mark · Easy
Answer and check →Which statement is true?
- A.1 is a prime number.
- B.2 is the only even prime number.
- C.15 is a prime number.
- D.All prime numbers are odd.
Question 5
2 marks · Easy
Answer and see the solution →Express 60 as a product of its prime factors. Give your answer in index form.
Question 6
2 marks · Easy
Answer and see the solution →List all the factors and the first three multiples of 9.
(a)[1 mark]Write down all the factors of 9.
(b)[1 mark]Write down the first three multiples of 9.
Question 7
1 mark · Easy
Answer and see the solution →Which of the following is a composite number? Write your answer. 12, 7, 5, 2
Question 8
2 marks · Normal
Answer and see the solution →Write down all the factors of 36.
Question 9
3 marks · Normal
Answer and see the solution →Express 84 as a product of its prime factors. Give your answer in index form.
Question 10
2 marks · Normal
Answer and see the solution →Explain why 13 is a prime number, but 15 is not.