'Hundred' in the Bible

So David sent messengers to Ish-bosheth, Saul’s son, saying, “Give me my wife Michal, to whom I was betrothed for [the price of] a hundred foreskins of the Philistines.”

But Joab said to the king, “May the Lord your God add to the people a hundred times as many as there are, and let the eyes of my lord the king see it; but why does my lord the king want to do this thing?”