Answer:
It is estimated that the Spanish conquistadors led by Francisco Pizarro had around 180 men and 27 horses when they first arrived in the Inca Empire. The Inca Empire, at the time of the Spanish arrival, was in the middle of a civil war between Atahualpa and his half-brother Huascar. The exact number of Inca soldiers is not clear but it is estimated that the Inca army that faced the Spanish in Cajamarca had around 7,000 to 8,000 soldiers.
It's important to note that the Inca army was not well-equipped or trained to fight the type of warfare that the Spanish brought with them. The Inca soldiers were mainly armed with spears, slings, and clubs, while the Spanish had superior weapons such as swords, crossbows, and muskets. Additionally, the Inca army was not accustomed to fighting against mounted soldiers, which made them less effective against the Spanish cavalry.
This disparity in military technology and tactics led to the relatively easy defeat of the Inca army by the Spanish, despite their numerical advantage. The Spanish were able to defeat larger Inca armies thanks to their superior weapons, horses and tactics such as surprise attacks, ambushes and divide and conquer strategies.