9
The greatest common factor of 16 72 and 81 is 1.
It is 9
The GCF of 36, 72, and 81 is 9.
The GCF is 9.
The GCF is 9.
The word "GREATEST" is a superlative adjective and that means there can be only one.GCF(72, 81) = 9.
The GCF is 9.
The greatest common factor is 9
The greatest common factor of 52 and 81 is 1
The greatest common factor of 56 and 81 is 1.
The greatest common factor of 81 and 189 is 27.
The greatest common factor of 40 , 81 = 1