Latex weird footnote numbering

Question

There are weird footnote numbers that I did not intend to generate. I added only two footnotes, but there are footnotes number 2 and 4 that I did not write.

I cannot figure out the solution. Did anyone experience the same problem or know the solution?

The below is the Latex code of this. Even if I don't use any of usepackage options, the problem still happens.

\documentclass{article}

\begin{document}
blablablalba\footnotemark
\\
\\
\\
\footnote{firstfootnote}
\\
\\
\\
wordswordswords\footnotemark
\\
\\
\\
\footnote{secondfootnote}

\end{document}

Answer 1

I just found the solution.

Using \footnote was the problem. Changing it to \footnotetext solves the problem.

\documentclass{article}

\begin{document}
blablablalba\footnotemark[1]
\\
\\
\\
\footnotetext[1]{firstfootnote}
\\
\\
\\
wordswordswords\footnotemark[2]
\\
\\
\\
\footnotetext[2]{secondfootnote}

\end{document}

Answer 2

The additional numbers are added by using both \footnotemark and \footnote. To avoid this problem, only use \footnote{...} where you want your footnotemarker to be:

\documentclass{article}

\begin{document}
blablablalba\footnote{firstfootnote}


wordswordswords\footnote{secondfootnote}

\end{document}