The factors of 20 are:1, 2, 4, 5, 10, 20The factors of 36 are:1, 2, 3, 4, 6, 9, 12, 18, 36The common factors are:1, 2, 4
Since 18 is a factor of 54, all of its factors are common.
The common factors of 18 and 36 are 18,9,6,3,2,1.
Since 18 is a factor of 54, all of its factors are common.
Since 18 is a factor of 180, all of its factors are common.
Since 18 is a factor of 108, all of its factors are common, i.e. 1,2,3,6, 9 and 18.
Since 6 is a factor of 18, all of its factors are common.
The factors of 18 are 1, 2, 3, 6, 9, 18. For them to be common, they need to be compared to another set of factors.
1 and 2 all the common factors of 64,12,18
66
The common positive integer factors of 18 and 30 are: 1, 2, 3, 6
Since 18 is a factor of 36, all the factors of 18 will be common to 36. 1,2,3,6,9,18