Starter quiz

  • Fill in the missing word in this statement: A number which has exactly 2 factors is called a ______ number.
    • 'prime' ✓
  • Which of the following arrays shows that 6 is not a prime number?
  • Which of the following is not a prime number?
    • 11
    • 15  ✓
    • 17
    • 19
  • True or false? 31 is a prime number.
    • True, it has exactly 2 factors, 1 × 31  ✓
    • False, you can make an array of 3 × 11
  • True or false? All odd numbers between 2 and 10 are prime numbers.
    • True, you cannot make an array with a width of 2
    • False, 9 has 3 factors  ✓
  • Which is the odd one out in this list? 37, 47, 57, 67
    • 37
    • 47
    • 57  ✓
    • 67
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