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This one is good.
But it would be even better by saying "Naturals below 98 with exactly two divisors"?
One character better. Which is the answer on your second question.
Naturals below 98 with exactly t̶w̶o̶ 2 divisors
If it's worth saying, but not worth its own post, then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should start on Monday, and end on Sunday.
4. Unflag the two options "Notify me of new top level comments on this article" and "