A group project I am involved in has a shared Gmail account for a while now. There is no single number associated with this account which I am aware of.
I was trying to log from another device than a usual one so Google asked me to prove I am human. Hence a SMS or phone call option ...Authenticating a user via SMS. This is not a two factor authentication.
Once in I was looking for a trace of my phone number so as to delete it. Where would Google store it with in the shared account if it does store it.