60
30,2
15,2,2
5,3,2,2
22 x 3 x 5 = 60
Because 45 is not a factor of 60.
60 30,2 15,2,2 5,3,2,2
60 30,2 15,2,2 5,3,2,2
60 30,2 15,2,2 5,3,2,2
60 30,2 15,2,2 5,3,2,2
30,2 15,2,2 5,3,2,2
45 doesn't divide into 60 evenly.
Because 45 is not a factor of 60.
45 doesn't divide into 60 evenly.
as you can obviously see the bottom of a factor tree would be the curious numbers of 2,2,3,5
use a factor tree
24 12,2 6,2,2 3,2,2,2 60 30,2 15,2,2 5,3,2,2