mypaper.tex

\documentclass{article}
\title{Title of Document}
\author{Name of Author}

\usepackage{sagetex}

\begin{document}
\maketitle

heh -- This is a test.

This year is $2016=\sage{factor(2016)}$.

heh --  now I'm typing a lot

$\sage{3+3}$

heh -- Consider $x^3$.



heh --  now I'm typing a lot

heh -- Blah.

heh --

heh -- Yes, I will! now I'm typing a lot


Ok now I'm typing a lot

\end{document}