It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question so, mathematically, the question does not make sense.
If, instead, you consider a number [positive integer] whose greatest common factor is one, then there is only one possibility and that is the number one. So you would call it ONE.
Chat with our AI personalities