Answer:
8. Can't do prime factorization for -82 since it's a negative number
9. 38
/ \
19 × 2
10. 208
/ | | | \
2×2×2×2×13
11. 11 is a prime number therefore you can't break it down further
12. 60
/ | | \
2×2×3×5
13. Can't do prime factorization for -78 since it's a negative number
14. 20
/ | \
2×2×5
15. 124
/ | \
2×2×31
