I forgot the 8!, now match that expression.

When I submit the code, it test the number 10 and the prime factors for 10 are: 2 and 5 but it throw this error

[[1, 5], [1, 2]] should equal [[2, 5], [1, 1]]

I don't understand why

EDIT: sorry, now I understand why

Is there a way to show what numbers fail in the regex pattern?
I tested my regex and 74 expression passed but 8 expression failed, I would like to know what numbers didn't pass the regex. I tested the regex and seems to look ok.