Răspuns:
ex6 :
a) 5^41, 5^20, 5^16, 5^7, 125^1
b) 2^7, 5^3, 3^4, 4^3, 6^2
c) 4^4, 2^6, 8^3, 11^2, 3^3
d)10^3, 4^5, 12^2, 3^4, 2^5