Yes problem with between/3...

Try it ;-) It was just the first dirty fix I thought of. But you'll need to add the compound test back in to see the effect.

OK. I looked at your solution; why have you thought to eval a compound? You could have directly begun with: prime_factors_(N, 2, "", R)..

Given a positive number n

17*17*93*677 is a positive number = 18195729:-)
I don't know how your function works but I don't see any problem with that... nevertheless I replaced it by its value: 18195729.

Given a positive number n

Because it doesn't make sense. A number != a compound, and some functions don't accept compounds. It would be similar if you passed in a string and didn't mention it could happen. IDK how valid it is to mix compounds and numbers in Prolog, but I would take a wild guess that it isn't. As you can see here(at the bottom), these are 2 different types.

It is a product... Why is it a problem for you? Others passed fine this part.

Thanks a lot

But you only see a few test cases. When you submit, there's probably hundreds of these tests run. So, is it really fast enough? :P

I have tried all the test cases in my python shell and it's working fast.I don't get it what is making my code slow here

There was an issue while submitting your solution

It could simply mean that CodeWars itself that was having problems. You should simply resubmit a few times, or copy your solution and refresh, try again. You should've received points for solving it, even if you didn't submit it.

I tried your solution and what I get is:

STDERR
Execution Timed Out (12000 ms)

Your code is too slow.