Answer:
I'm pretty sure that all of the Prime numbers only have two factors. Let's say 3 for an example.
Step-by-step explanation:
The number 3 only has the factors of 3 and 1.
The two factors are itself (of course) and 1 (any number can go into one).
Another way to do this if you had to find out an answer like this.
3x1=3. Any number that can go into itself times 1 has only 2 factors.
Or at least I think. This is probably wrong. So Sorry if it is.