You cannot really make a factor tree for 7 because it is already a prime number.
27 3,9 3,3,3
9x9=81. Proving that one of the factor trees for 81 is 9xp.
If a multiple of 10 were a factor of 45, then both '10' and the multiple would be factors of 45. Since 10 is not a factor of 45, there is no such number.There are no multiples of 10 that are factors of 45.
There is no multiple of 10 that's a factor of 45.
45 15,3 5,3,3
1,3,5,9,15,45
Because 45 is not a factor of 60.
36 18,2 9,2,2 3,3,2,2 45 15,3 5,3,3
45 15,3 5,3,3
Use a factor tree. 45 15,3 5,3,3
45 15,3 5,3,3
45 15,3 5,3,3
45 doesn't divide into 60 evenly.
45 15,3 5,3,3
Because 45 is not a factor of 60.
Use a factor tree. 45 15,3 5,3,3