The GCF is 6.
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The greatest common factor is 18
The GCF of 39 and 108 is 3.
The greatest common factor for the numbers 27 and 81 are 27.
480/1200 = 2/5 The GCF of 480 and 1200 is 240. 84/108 = 7/9 The GCF of 84 and 108 is 12.
Since 108 is a factor of 432, it is automatically the GCF.