Since 12 is a factor of 72, all of its factors are common.
The common factors are: 1, 2, 3, 6
2 and 4
4
1 and 3
Since 12 is a factor of 36, all of the factors of 12 are common to 36.
72
The common factors of 72 and 86 are: 1 and 2
The common factors of 72 and 123 are: 1 and 3
The common factors of 72 and 81 are: 1, 3, and 9
The common factors of 72 and 99 are 1, 3, and 9
Common factors of 81 and 72 are: 1, 3, and 9.
The factors of 8 are: 1, 2, 4, 8.The factors of 12 are: 1, 2, 3, 4, 6, 12.The common factors are: 1, 2, 4