how can i do factorial analysis in R

I have 12 quetions about sales of a supermarket, done to 500 clients. I want do know:
How can i do first a descritive analysis of data in likert scale?
How can i do factorial analyse with principal component
How can i do factorial analyse with maximum likelihood

There are probably all sorts of packages available but The {psych} package looks like it will do what you want.

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