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The gcf method returns the greatest common factor of parameters a and b, as determined by case I and case II. Write the gcf method below. You are encouraged to implement this method recursively.

Sagot :

The use GCF method is correctly illustrated recursively below

What is GCF (Greatest common factor)

The GCF is the greatest common factor that can be used to correctly divide two or more numbers without a reminder.

For example,

The parameters 20 and 30, to know the greatest common factor, write out each factors of 20 and 30

The factors of 20 = 1, 2, 4, 5, 10, and 20

The factors of 30 = 1, 2, 3, 5, 6, 10, 15, and 30

Therefore the GCF = 10

Learn more about factors here:

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