
You know how when you see
PRIME numbers, they appear red,
The Big Bang Theory Season 9, Episode 12

In another universe,
let's call that Universe Prime...
The Big Bang Theory Season 2, Episode 18

not even Prime.
The Big Bang Theory Season 11, Episode 12

I've devoted the PRIME
of my life to string theory
The Big Bang Theory Season 7, Episode 20

Is there any PRIME minister in Europe
who wants to go to jail?
Money Heist Season 3, Episode 5