hmm, I guess I've done match the same, but more complicated :) Nice solution https://www.codewars.com/kata/reviews/5a5e23c47635599816000ac8/groups/5d166b37fdfc750001de6dd3

The same

Have you already realised what's wrong in your question? Those params are refer to lambda "sum" function. Not to accumulate.

Looks a bit complicated... )

Looks nice

What about built-in int64 type for tests?

What about capital letters?

Maybe you should pick one example with array consisting a least 1 zero? Cause now I need to rewrite my solution.

Totaly agree with first comment. I won't to do this task becase of all this conversions. Pretty code btw, nice functional approach)

Now is all ok! Thanks for kata)

I passed Test cases on f#, but couldn't submit it. An error:

if (nbfactors x = k) then yield x]
  ----------------------------^^^^^^^^^

/runner/stdin(67,29): error FS0039: The value or constructor 'nbfactors' is not defined

I can't even print an array into the log to see what's wrong with my code

Thanks for your feedback and remark!)