Who knows how to find out your Apple ID?

Question

Apple ID

I didn’t update for 3 years, I didn’t use Apple ID at all, and didn’t pay attention to his name, but I remembered the password well because I installed all sorts of applications and updates, but once my child made an update for some reason, and now when I turn it on he asks me for the name and password of Apple ID, I can’t remember at all what characters were there because there are a lot of them .... Help solve the problem.

Answer 1

Do you remember your email address that you registered with? This is the id