"Common" means "same for all". There's nothing 'common' about only one thing,
and no 'common' factors of one single number. If you want to practice finding
common factors, you need to start with at least two different numbers.
The greatest common factor of 138 and 207 is 69.
Greatest common factor of 102 and 138 is 2.
GCF of 69 and 138
Since 138 is a factor of 4692, it is automatically the GCF.
It is: 2
The greatest common factor (GCF) of 46 and 138 is 46.
The greatest common factor is three.
The GCF is 2.
The GCF is 138.
The GCF is 3.
The GCF is 6.
46