which is not a common factor for 36 and 54
which what?
4, 5, 7, 8
To find the common factors of 36 and 54, we need to list the factors of each number and find the numbers that appear in both lists.
The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.
The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.
From these lists, we can see that the common factors of 36 and 54 are 1, 2, 3, 6, 9, and 18.
Therefore, the number 7 is not a common factor for 36 and 54.