Hint: it's a CUBE of a CUBE
of a prime.
The Big Bang Theory Season 12, Episode 23
He invented the Rubik's Cube.
The Big Bang Theory Season 9, Episode 24
You’re the lesbian. Your nugget
was as hard as a sugar CUBE.
Money Heist Season 1, Episode 5
Not the CUBE, but the puzzle of
why I couldn't solve the CUBE.
The Big Bang Theory Season 12, Episode 19
To make a CUBE of scrap from it
in a wreck yard.
Money Heist Season 1, Episode 7