# My Coincidence encounter with $$3$$, $$4$$, $$5$$ and $$6$$

\displaystyle\begin{align}{\color{blue}66\times66}= {\color{red}4}3{\color{red}5}6\end{align}

\displaystyle\begin{align}{\color{blue}666\times666} = {\color{red}44}3{\color{red}55}6\end{align}

\displaystyle\begin{align}{\color{blue}6666\times6666} = {\color{red}444}3{\color{red}555}6\end{align}

\displaystyle\begin{align}{\color{blue}66666\times66666} = {\color{red}4444}3{\color{red}5555}6\end{align}

In the above multiplications it is observed that increasing the numbers of $${\color{blue}6}$$ at different place values also the numbers of $${\color{red}4}$$and $${\color{red}5}$$ increases less by $$1$$. Are the above such multiplications always true ?

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