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The GCF is: 12
The GCF is 12.
gcf of 144 and 54 is 18.
The GCF is 1.
The GCF is 6.
The GCF is 16.
The GCF of 3 and 228 is 3.
The GCF is 9.
Since 36 is a factor of 144, it is automatically the GCF.