
There's a NUMBER.
The Big Bang Theory Season 5, Episode 17

And rule NUMBER one is pants.
The Big Bang Theory Season 8, Episode 23

-remember my telephone NUMBER.
-That’s why I said that.
Money Heist Season 1, Episode 1

I see no reason to suspect universe
NUMBER 44 will be any different.
The Big Bang Theory Season 6, Episode 8

...due to the limited NUMBER of outcomes.
The Big Bang Theory Season 2, Episode 8