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Greatest Common Factor


The largest number divides exactly into two or more further numbers. It is the “biggest” idea for explaining fractions!

The other names of Greatest Common Factor are

  • Highest Common Factor (HCF)
  • Highest Common Divisor (HCD)
  • Greatest Common Divisor (GCD)

Example Of Greatest Common Factor

Example1: Find the Greatest Common Factor of 18 and 27

Solution

  • Get all the factors of each number,
  • Round the Common factors,
  • Take the Greatest of those

Greatest Common Factor

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