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Anonymous
You need at least two numbers to find a GCF.
Wiki User
The greatest common factor of 66 and 153 is 3.
51, 51 multiplied by 3 = 153
51
It is 9.
17
The GCF is 51.
The GCF is 153.
The GCF is 17.
The GCF is 9.
The GCF is 1.