The prime factors are:
39 = 3 * 13
143 = 11 * 13
156 = 2 * 2 * 3 * 13
So the greatest common factor is 13.
The GCF is 13.
The GCF is 13.
The GCF is 13.
The GCF of 65, 143, and 156 is 13.
The GCF is 13.
The GCF is 13.The GCF is 13.
The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The highest factor of any number, such as 91143156, is itself.
The GCF is 13.
GCF = 13
The GCF is: 13
The GCF is 13.
The GCF is 13.