Explain how to identify a prime factor of a number | Maths

Starter quiz

Match the number to the correct type.
- Prime number
  
  ⇔
  
  3 ✓
- Composite number
  
  ⇔
  
  6 ✓
- Square number
  
  ⇔
  
  4 ✓
True or false: 19 is a prime number.
- True ✓
- False
Tick the prime numbers.
- 3 ✓
- 7 ✓
- 9
- 17 ✓
- 21
Complete: 4 × 2 × 3 = ______
- '24' ✓
What square number is represented by this incomplete factor bug?
- '36' ✓
Match the expression to the correct product.
- 4 × 5 × 5
  
  ⇔
  
  100 ✓
- 4 × 1 × 3
  
  ⇔
  
  12 ✓
- 4 × 3 × 5
  
  ⇔
  
  60 ✓
- 4 × 8 × 2
  
  ⇔
  
  64 ✓