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∑ DANEMATHICS
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Grade 8 · Whole Numbers
Factors, Multiples & Prime Factorisation
WORKSHEET
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  / 14

Answer all questions. Show all your working — marks are awarded for method as well as the final answer.

  1. 1
    List all the factors of 36.
    (2)
  2. 2
    List all the factors of 40.
    (2)
  3. 3
    Write down the first five multiples of 8.
    (2)
  4. 4
    Is 51 a prime number? Give a reason.
    (2)
  5. 5
    Write down all the prime numbers between 20 and 30.
    (2)
  6. 6
    Write 90 as a product of its prime factors.
    (2)
  7. 7
    Write 84 as a product of its prime factors.
    (2)
TOTAL: 14 marks
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