Lowest common multiple | Maths | Quizalize & Oak National Academy

Starter quiz

Complete the statement. A number that is a multiple of two or more numbers is called a ______ multiple.
- 'common' ✓
Match each number with its first four multiples.
- First four multiples of 2:
  
  ⇔
  
  2, 4, 6, 8 ✓
- First four multiples of 4:
  
  ⇔
  
  4, 8, 12, 16 ✓
- First four multiples of 3:
  
  ⇔
  
  3, 9, 12, 15 ✓
- First four multiples of 12:
  
  ⇔
  
  12, 24, 36, 48 ✓
Which of the following is a factor of $2^3\times3^4\times5^2$ and of $2^3\times3^5\times5$ ?
- $2^3\times3^5\times5^2$
- $2^2\times3^4\times5$ ✓
- $2^2\times3^4\times5$ ✓
- $2^3\times3^4\times5^2$
Select the correct statements
- 240 as a product of prime factors is $2^4 \times 3 \times 5$ ✓
- 240 as a product of prime factors is $2^2 \times 3^2 \times 5$
- 180 as a product of prime factors is $2^2 \times 3 \times 5$
- 180 as a product of prime factors is $2^2 \times 3^2 \times 5$ ✓
The HCF of 84, 180 and 120 is ______
- '12' ✓
The HCF of 126, 945 and 189 is 63. The missing prime factor in the Venn diagram is ______
- '7' ✓