1,2,5 and 10
The common factors are: 1, 2, 5, 10
10
The GCF is 2.
The GCF is 1.
The GCF is 2.
The common factors of 30 and 40 are 1, 2, 5, 10
The common factors of 30 and 21 are 1 and 3.
The common factors of 30 and 63 are 1 and 3.
The common factors of 30 and 32 are: 1 and 2
The common factors of 30 and 74 are: 1 and 2.
The common factors of 25 and 30 are 1 and 5.
10, 20, 30, 40, 50, 60.