The third prime is 5.
"The third prime is 5."
Sigh.
You're not getting in tune with the ZEN of the article...
5 may be the third prime, technically, but it can be disregarded for our purposes because then the product of the first three primes won't be 42.
Therefore, even though 5 is TECHNICALLY a "prime number", it's not in this case. It's a mathematical quantum particle that has no mass for our particular purposes.
Which proves that gravitrons exist.
Surely you see this.