Dynamics 360 interview questions

I was asked to wait while the owner looked at my CV thoroughly. I was then warmly greeted and asked to be seated. The process started with them asking what I'd done in the past. I was asked database questions about normalization, primary keys and foreign keys. OOP concepts were particularly asked. Then i was asked to code in any language 'how to calculate factorial'

they first asked concepts of html,css and javascript. then gave coding question of finding factorial and checking prime number. then they finished the process. The test went good for me.