These all different numbers are told by Abu Hurairah that Prophet Solomon had sex with so many wives in one night.
There are some more different numbers other than above, mentioned in Bukhari but we did not spend time for those.
The above example is enough to understand how there is contradiction in own Abu Hurairah’s words.
The story about Prophet Solomon itself is unbelieveable.
When somebody speaks truth, there is no contradiction in the words, this is the benifit, because that person has to say exact samething.
But when someone has to tell things from his own pocket, that person easily forgets what he told last time. That’s why we find the contradiction in Abu Hurayra’s statements.