are you looking for the software to output it directly? if so, it is not possible, that is a feature of the arc control method.
also, with force control, it is likely going to have trouble when buckling starts to happen. this is why the arc control method exists.
why not use arc control?
if you haven't done so already, i'd check the solidworks KB. bunch of good articles on this. also the nonlinear manual has some good examples as well.
Thank You for your reply. And I saw arc control method and displacement control method gives load factor values as default. Anyway I am asking that is it possible to get load factor through force method and using the other two methods will give same results.