In a divorce case a requested entry of default was granted after it had been denied a couple of times. Does this mean the divorce is final?

No,

Depending on the state, there still has to be a trial, showing your case as to why you want to be divorced. Default just means that the defendant hasn't responded to the summons, and has to have good reason to be part of the proceedings.

Defaults are usually denied when you do not serve the other side correctly.

Divorce is only final when you receive the signed decree of divorce from the court.