The common factors of 22 and 42 are: 1 and 2
The common factors of 21 and 42 are 1,3,7,21
The common factors of 42 and 92 are: 1 and 2
The Common Factors of 42 and 44 are 1, 2
The common factors of 42 and 77 are: 1 and 7
The common factors of 42 and 56 are 1,2,7 and 14
The common factors of 42 and 110 are: 1 and 2
Common factors of 16 and 42 are: 1 and 2.
Since 14 is a factor of 42, all of its factors are common.
The common factors of 21 42 and 84 are 21
The common factors of 42 and 44 are 1 and 2.
The common factors of 32, 42, and 52 are: 1 and 2.
The common factors of 14, 42, and 56 are 1,2,7 and 14