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It is 12
The GCF is 4.
The GCF is 2.
252
It is: 1
The GCF of 72 and 36 is equal to 36.
The GCF is 1.
The GCF is 12.
The GCF is 18.
The GCF is 84.
Since 84 is a factor of 504, it is automatically the GCF.