You need at least two numbers to find a GCF.
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 9.
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 51 and 175 is 1
The GCF is 1.