What are the factor of 12 but not a multiple of 4

First, you should list the factors of 12. Keep going until you see a number that isn't a multiple of 4.

1 and 12

2 and 6

3 and 4

2, 6, and 3 are all factors of 12 and none of them are multiples of 4.

Some factor of 12 but not a multiple of 4 is 2,3,1, and 12