If you were going to make segment marks on a chewy fruit worm without any marks, what would be the advantage or disadvantage of using a prime number of segments?

The disadvantage would be well, u know how u can divide a even number (not prime unless it's 2) into equal parts by putting the first segment in the middle then the next two in the middle of those? Well, u can't do that with a prime number because u can't divide any prime number like that. It's the best I can explain this concept. I'm pretty sure I'm right, but it's just hard to explain.