Remove numbers after gamertag (which only 1 account has)

Any gamertag made after a certain date has numbers. This is not changeable or removeable

I’m talking about the extra gamertag that appears only on my profile such as, tt#2457.

sorry for the confusion, I understand that I can’t only have the gamertag tt because other people have it. I was asking if i could completely remove that gamertag from account and only have my original gamertag which doesn’t have numbers and appears in game.
For example, when i’m looking at my profile i see “tt#2166”but my other gamertag that people see ingame is “ezbj” i was asking if there’s anyway to remove my social gamertag and show only ezbj

Hello there! I see you're trying to remove the extra gamer tag from your account. In order to do so,you can either (A) Use your 1 time free gamertag change or (B) you'll have to buy a gamertag change or you could contact Xbox support

This account which i used to change the Gamertag. It had the tag of “SvmmyTvlhvMCYT” it didn’t have the numbers. I created a new account it didn’t had any numbers. I used another account to change an Gamertag (after the first account) it didn’t show any numbers.

You would have to change your gamertag to a tag that nobody else is using.

is it another gamertag or is it just labeled guest? If so that is just the guest option.

The guest option is for a friend of yours to sign in if you are playing 2 player on xbox live and only one of you has a gold account. That way you can play multiplayer games like Black Ops and Halo 3 with your buddy, they will just show up as your gamertag
with an extra number after it.

Example

Totenkopf69(1)