13, 26 and 39
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The Greatest Common Factor, or GCF.
There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.
The greatest common factor, or GCF.
There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.
The greatest common factor between 2 numbers is the largest factor that they have in common. Therefore, the greatest common factor of 22 and 33 is 11.