The gcf for 24 and 34 is 2 because using prime factorization you get 3 2's, and a three for 24. You get 17 and a 2 for 34. The one two is in common. Therefore the greatest common factor for 24 and 34 is 2.
GCF(22, 24, 34) = 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 34.
The GCF is 2.
The GCF is 17.
The GCF is 2.
The GCF is 1.
The GCF is 2.