How Google Search Works

Question

I recently learned about FNV hashing, and out of sheer curiosity I was just looking for a magic constant 2166136261on Google.

I am very surprised to find that the Wikipedia FNV hash page appears as the third search result. However, when I open the wiki page, I find that the constant is 2166136261not listed in the article (not even in the source code).

How could a Google search get this result or did he “know” the relationship between FNV and 2166136261?

EDIT

To prevent my search statistics from affecting the search result, I also tried using the invognito mode on google.com.hk, the Wiki result is still displayed as the 10th result, not the third.

It is also very different from the 1st to the 9th result, since most of them are source codes of the type unsigned hash = 2166136261u ...

In this case, I’m not sure whether Google sees 2166136261, and Fowler-Noll-Vo - “synonyms” (or are they somehow connected), since it is obvious that a search in “Fowler-Noll-Vo” will lead to very different results .

Answer 1

I do not know a technical explanation, but I can offer some arguments.

In the past, I searched for terms with alternative names. For example, my wife has a Nissan Tiida. In the US, the same car is called the Nissan Versa. The search Tiidawill include pages with the word Versa, although the term is Tiidanot on the page.

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, 2166136261 FNV, FNV.

Answer 2

, () , . , 2166136261 Google, Wiki . google.com.br, google.com

Answer 3

Google “knows” (through its global search history and click analysis) that web pages that are related to “FNV hashing requests” also often contain the significant (i.e. rare) term “2166136261”. Therefore, Google claims that these terms are "synonyms." It extends your original request to include synonyms (this was once called request rewriting).