The GCF is 3.
The GCF is 30.
The greatest common factor (GCF) is 5.
You need more than one number to find a GCF.
You need at least two numbers to find a GCF.There cannot be a greatest common factor (GCF) of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
30 is a factor of 150 so 30 is the greatest common factor of 30 and 150
Since 30 is a factor of 60, and the largest possible factor of 30 is 30, the greatest common factor is 30.
You need at least two numbers to find a GCF.
You check whether there is a common factor - in this case, common between 4 and 30. If you find one, you divide both numbers by this common factor.
The GCF is 6.
The GCF is 15.
The GCF is 5.
The greatest common factor (GCF) of 20 and 30 is 10.