Now it truly lives up to its name!

I came up with a riddle.
DSC09224msn3.jpg
(↑This image was shot for a future post
and isn't really related to this article)

Question: Suppose Prime makes wheels in 20H, 24H, 28H, and 32H models.
If one spoke breaks on each model,
which of the four spoke counts above would NOT allow you to jokingly say
"Now it truly lives up to its name! HAHAHA"?
(Answer is below)









Answer: 28H. The reason is that this is the only one where
the remaining spoke count after losing one spoke is not a prime number.
By the way, prime number in English is "prime number,"
or simply "primes."

Similar jokes can be found (→here)

Also, please only give this post a thumbs up
if you got the answer correct, including the reasoning.

Edit: ↓There's no way there'd be that many!

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