Hint: it's a cube of a cube
of a prime.
The Big Bang Theory Season 12, Episode 23
Don't worry, I can take a HINT.
The Big Bang Theory Season 7, Episode 3
I'll give you a HINT.
The Big Bang Theory Season 1, Episode 6
With a HINT of ammonia.
The Big Bang Theory Season 5, Episode 7
I'll give you a HINT. I have a bracelet
with my own address on it.
The Big Bang Theory Season 6, Episode 22