The only common factor of 33 and 56 is 1.
The common factors of 56 and 18 are 1 and 2.
The common factors of 38 and 56 are 1 and 2.
Since 28 is a factor of 56, all of the factors of 28 are common to 56.
The common factors of 52 and 56 are: 1, 2, and 4
The common factors of 12 and 56 are: 1, 2, and 4
The common factors of 63 and 56 are: 1, 7
Since 4 is a factor of 56, all of its factors are common.
The common factors of 34 and 56 are 1 and 2
The factors of 63 are 1,3,7,9,21, and 63 The factors of 56 are 1,2,4,7,8,14,28 and 56. The factors that are shared are 1 and 7. So the common factors of 63 and 56 are 1 and 7.
1 & 3 are the common factors of 27 and 33.
The common factors are: 1, 3, 11, 33
The common factors of 33 and 77 are 1 and 11