The GCF is 2.
One way to find the GCF of two or more numbers is to list the factors of each. 34: 1, 2, 17 and 34 90: 1, 2, 3, 5, 6, 9, 10, 15, 30, 45 and 90 The largest factor 34 and 90 have in common is 2. 2 is the LCM of 34 and 90.
The GCF is 34.
The GCF is 2.
The GCF is 17.
The GCF is 2.
The GCF is 2.
The GCF is 1.
The GCF is 1.
The GCF is 2.
GCF of 22 and 34 is 2.
The GCF of 27 and 34 is 1.