Answer:
They had greater numbers of men.
Step-by-step explanation:
The main advantage that the Aztecs and Incas held over the conquistadors was that they had a greater number of men. This is because the conquistadors were only a few dozen men, while the native people consisted of large empires. However, the conquistadors had horses, while the Natives did not. Moreover, the Spaniards had superior weapons and were better trained.