Complete the factor tree with whole numbers to create a factor tree for 72. (2 points)
72
/ \
3 x __
/ \
3 x __
/ \
2 x ___
/ \
__ __
rong
72 can be factored into 2 x 2 x 2 x 3 x 3. Therefore, the completed factor tree for 72 is:
```
72
/ \
2 36
/ \
2 18
/ \
2 9
/ \
3 3
```