Will removing pagination help rankings?

I have some paginated posts on my website and I'm wondering has anybody seen that removing it helps rankings, because instead of 3 pages, it's now just 1 page?

Also, one problem is if I type in mydomain.ext/name-of-article/3
it shows the same as if I didn't put the /3 on.

As this is indexed by Google, I wonder if it will think I've created the same article 3 times. Is there a way I can remove the /3 from the index so this potential duplication doesn't happen?
Or will Google know that the…

Will removing pagination help rankings?