The common factors of 28 and 63 are: 1 and 7
The common factors of 21 and 63 are 1, 3, 7, and 21
The common factors of 21 and 63 are: 1, 3, 7, and 21
The common factors of 21 and 63 are: 1, 3, 7, and 21.
The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56 The factors of 63 are: 1, 3, 7, 9, 21, 63
The factors of 28 are: 1, 2, 4, 7, 14, 28 The factors of 63 are: 1, 3, 7, 9, 21, 63
The common factors of 63 and 84 are: 1, 3, 7, and 21
The factors of 28 are:1, 2, 4, 7, 14, 28The factors of 189 are:1, 3, 7, 9, 21, 27, 63, 189The common factors are: 1, 7
The greatest common factor of 63 and 147 is 21.
The factors of 63 are 1, 3, 7, 9, 21 and 63. For them to be common, they need to be compared to another set of factors.
The factors of 28 are: 1, 2, 4, 7, 14, 28 The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 63 are: 1, 3, 7, 9, 21, 63
The same as the greatest common factor of 35 and 28 (where 28 is the remainder of the division of 63 by 35).