Reviewing The Greatest Common Factor

Greatest Common Factor

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Greatest Common Factor

Common factors are factors that are shared by two numbers. The greatest common factor of two numbers is the greatest number that is a factor of the two numbers.

  • Find the greatest common factor of 8 and 12.
  • Find the greatest common factor of 18 and 24.
  • Find the largest square tile that will cover a 27 × 63 rectangle.
  • What is the greatest common factor of 54 and 126?

Hint:

  • Find numbers that will divide evenly into both numbers. Which is the largest?
  • Find all the factors of both numbers. Look for the common factors.