Thanks!

Random test cases include strings of fewer than 5 digits although insrtuctions say to expect 5 or more. - the same issue is with Python

Can anybody please give me a hint here?

My code fails at Test.assert_equals(greatest_product("92494737828244222221111111532909999"), 5292).

The input string can be represented as a 5-element consecutive numbers series:

chunks = [[9, 2, 4, 9, 4], [7, 3, 7, 8, 2], [8, 2, 4, 4, 2], [2, 2, 2, 2, 1], [1, 1, 1, 1, 1], [1, 5, 3, 2, 9], [0, 9, 9, 9, 9]]

What I'm getting with numpy:

>>>[numpy.prod(i) for i in chunks]
[2592, 2352, 512, 16, 1, 270, 0]

So, according to this the max value is 2592 thus how can there be 5292? Am I missing something?

Can anyone provide a formula please?

For what does d state here for?