Question

Using a factor tree to find the prime factorization of 36

Answer 1

36
/ \
18. 2
/ \
2. 9
/ \
3. 3 I wrote it on a phone, so it'll look different from a PC.

Answer 2

2 / 36          2 into 36 is 18
2 / 18          2 into 18 is 9
3 / 9            3 into 9 is 3
3 / 3            3 into 3 is 1
   / 1

Therefore 36 = 2 × 2 × 3 × 3