When one of the numbers is a factor of the other.
No; two numbers can have only 1 GCF.
If one of the numbers is a multiple of the other, the smaller number is the GCF. If the two numbers are prime numbers, the GCF is 1. If the numbers are consecutive, the GCF is 1. If the numbers are consecutive even numbers, the GCF is 2.
You can only have one GCF and you need at least two numbers to find it.Two numbers with a GCF of 850 are 850 and 1700.
You need at least two numbers to find a GCF.
When one of the numbers is a factor of the other.
One
No. If both numbers are even, their GCF must be even itself.
Any positive number can be a GCF. But for each separate set of numbers, there can only be one.
It is one
When the smaller one is a factor of the larger one. (That also means the larger one is a multiple of the smaller one.) The smaller number is the GCF of both.
The GCF of one number is itself. To find the GCF, two or more numbers are needed.
The GCF of one number is itself. To find the GCF requires two or more numbers.