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The GCF is one because 43 is a Prime number.
The GCF is 54.
The GCF of 10 and 54 is 2.
The GCF is : 54
The GCF of 27, 54 and 81 is 27.The GCF of 27, 54 and 81 is 27.
The GCF is 27.
The GCF is 6.
The GCF is 1.
The GCF is 9.