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
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.
As an example the factors of 64 are 1, 2, 4, 8, 16, 32, and 64. Examples: The common factors of 9 and 64 are only 1; the greatest common factor is 1. The common factors of 48 and 64 are 1, 2, 4, 8, and 16; the greatest common factor is 16. The common factors of 64 and 100 are 1, 2, and 4; the greatest common factor is 4. Note that for common factors you need two or more numbers
The only common factor of 64 & 29 is 1.
The common factors of 64 and 72 are 1, 2, 4 and 8.
The common factors of 16 and 64 are 1, 2, 4, 8, and 16.