I can't solve too.
Possible solution is (sum - int).
But I'm not sure.
Array is not sorted
Perhaps "Memoization" and "Design Patterns" are actually used.

It is the interesting kata
I have learned a lot of new things

type(result) must be <class 'datetime.datetime'>

'datetime.datetime(2012, 10, 17, 21, 13, 27)' should equal datetime.datetime(2012, 10, 17, 21, 13, 27)

What is the format of the result?

The task solve without sieve of Eratosthenes
Is it right?

expected:<[3[37, 34]7]> but was:<[3[07, 31]7]> what a f***????
My own tests are passed and passed successfully. Check tests before deploying kata...

The code on the Python
Locally in the worst case with interval 10-1000000 and more it finish for 0.021 seconds
But on the site I get "Timed Out (12000 ms)"
Do I must to find algorithm faster?