Topic

Factors And Multiples

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Quizzes in Factors And Multiples


Find the greatest common divisor (highest common factor) of 462 and 756.

  • 21
  • 42
  • 66
  • 84
Correct answer(s):
    • 42

Which of the following pairs of integers are co-prime (share no common factors greater than 1)? Select all that apply.

  • 14 and 25
  • 18 and 27
  • 8 and 15
  • 21 and 35
Correct answer(s):
    • 14 and 25
    • 8 and 15


Select all pairs of positive integers that have HCF 6 and LCM 180

  • 12 and 90
  • 18 and 60
  • 30 and 36
  • 24 and 45
Correct answer(s):
    • 12 and 90
    • 18 and 60
    • 30 and 36

Which of the following numbers are multiples of 7? Select all that apply.

  • 14
  • 21
  • 28
  • 30
  • 49
Correct answer(s):
    • 14
    • 21
    • 28
    • 49