Latex - prime factor tree

Dear Forum,

I'm very new to Latex and trying hard to learn how present math documents for assessment.

Can anyone tell me how to display a prime factor tree? For example:

630 is 2x3x3x5x7 and I'd like to display the factors using arrows in a neat diagram.

Thanks in advance for any help.

Have you read the LaTex tutorial?

Quote:

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Originally Posted by wonderboy1953

Have you read the LaTex tutorial?

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The LaTeX tutorial doesn't show you how to do this (Crying).

Personally, I have no idea. My LaTeX learning so far has focused on typesetting text impeccably.

Quote:

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Originally Posted by Kcal

Can anyone tell me how to display a prime factor tree? For example:

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It can be done using the package PGF.

Here is an example :

Code:

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\documentclass{article}

\usepackage{tikz}

\begin{document}

\begin{figure}
    \centering
    \begin{tikzpicture}[
        level 1/.style={sibling distance=20mm},
        level 2/.style={sibling distance=10mm},
    ]
    \node{80}
        child{node {8}
            child{node {2}}
            child{node {2}}
            child{node {2}}
        }
        child{node {10}
            child{node {2}}
            child{node {5}}
        };
    \end{tikzpicture}
    \caption{Simple tree}
\end{figure}


\begin{figure}
    \centering
    \begin{tikzpicture}[
        level 1/.style={sibling distance=40mm},
        level 2/.style={sibling distance=20mm},
        level 3/.style={sibling distance=10mm}
        ]
    \node[rounded corners, draw]{720}
        child{node [rounded corners, draw] {20}
            child{node [fill=red!30,rounded corners] {2}}
            child{node [rounded corners, draw] {10}
                child{node [fill=red!30,rounded corners] {5}}
                child{node [fill=red!30,rounded corners] {2}}
            }
        }
        child{node [rounded corners, draw] {36}
            child{node [rounded corners, draw] {6}
                child{node [fill=red!30,rounded corners] {2}}
                child{node [fill=red!30,rounded corners] {3}}
            }
            child{node [rounded corners, draw] {6}
                child{node [fill=red!30,rounded corners] {2}}
                child{node [fill=red!30,rounded corners] {3}}
            }
        };
    \end{tikzpicture}
    \caption{Elaborated tree}
\end{figure}

\end{document}

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