The GCF is 10.
The GCF is 10.
The GCF is 10. The LCM is 30.
GCF(30, 50) = 10.
The GCF is 10.
The GCF of 50 and 30 is 10. (I believe you meant to ask "What ?" instead of "Why ?".)
gcf(20, 30, 90) = 10
The GCF would be 10 !
The GCF is 10.
The GCF is: 10
The GCF is: 10
The GCF is 10.
The GCF is 10.