The GCF is 1.
The factors of 111 are: 1, 3, 37 and 111.The factors of 37 are: 1, and 37.The common factors of 111 and 37 are: 1, and 37.The greatest common common factor of 111 and 37 is: 37.
The factors of 27 are 1,3,9, and 27 The factors of 64 are 1,2,4,8,16,32, and 64. 1 is the only common factor of 27 and 64.
The common factors of 50 and 64 are: 1, 2
The common factors of 18 and 64 are 1 and 2.
The common factors of 64 and 156 are 1,2, and 4.
The common factors of 28 and 64 are: 1, 2, and 4
37 and 12 share no common factors aside from 1.
37 and 120 share no common factors aside from 1.
Common factors of 12 & 64 are 1, 2 and 4.
The factors of 64 are 1, 2, 4, 8, 16, 32, 64. For them to be common, they need to be compared to another set of factors.
Factors of 64... 1,2,4,8,16,32,64 Factors of 66... 1,2,3,6,11,22,33,66 Common factors to both numbers.... 1 & 2.