This is correct, however, prime factorization usually does not use powers of ten, but instead the whole equation:
2 x 2 x 2 x 3 x 7, is easier to understand sometimes than 2^3 x 3 x 7
The prime factorization of 168 is...
Answer:
The Prime Factors are:
2 x 2 x 2 x 3 x 7
In Exponential Form:
23 x 31 x 71
Prime Factors Tree
168
/ \
2 84
/ \
2 42
/ \
2 21
/ \
3 7