🧮 Factors, Multiples, HCF, and LCM
Master the fundamentals of factors, multiples, highest common factor (HCF), and least common multiple (LCM) through practical examples and clear definitions. **What you'll learn:** - Identify factors and multiples of whole numbers - Find the HCF of two or more numbers - Calculate the LCM of two or more numbers - Apply HCF and LCM to solve real-world problems - Use prime factorisation to find HCF and LCM
Questions in this quiz
Answers hidden — play to find out.
- Question 1
Which of the following is a factor of 24?
- Question 2
Every multiple of 6 is also a multiple of 3.
- Question 3
The first four multiples of 5 are 5, 10, 15, and ___.
- Question 4
What is the HCF (Highest Common Factor) of 12 and 18?
- Question 5
The LCM of 4 and 5 is 20.
- Question 6
Which pair of numbers has an HCF of 7?
- Question 7
The LCM of 6 and 8 is ___ because it is the smallest number that is a multiple of both.
- Question 8
Arrange these steps to find the HCF of two numbers using prime factorisation in the correct order.
- Question 9
The HCF of any two prime numbers is always 1.
- Question 10
Two numbers have an HCF of 4 and an LCM of 24. If one number is 8, what is the other number?