Since 3 is a factor of 87, it is automatically the GCF.
The GCF is of 27 and 87 is 3.The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 3.3The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 3.
The greatest common factor of 87 and 51 is 3.
The GCF is: 3
The GCF is 3.
The GCF is: 3
The GCF of 12 and 87 = 3