Answer:
m^1n^4p^3
Explanation:
m^7n^4p^3 = mmmmmmmnnnnppp
mn^12p^5 = mnnnnnnnnnnnnppppp
Which factors are in common?
m^7n^4p^3 = mmmmmmmnnnnppp
mn^12p^5 = mnnnnnnnnnnnnppppp
Use common variables with lower exponent.
GCF = mnnnnppp
GCF = m^1n^4p^3
P.S. If you must fill in each box with an exponent, make sure you put a 1 for m, not a zero. m^1 = m, but m^0 = 1. If you are allowed to leave it blank, then leave it blank.