とある517桁の素数

$1111111111111111111111111111111111111111111111115555555555555555555555555555555555555555555551155111155511115551111155155555555555155111115511551555155155515555155551155555555511551555555115515551551555155551555515155555551515511155551155111155511115555515555155155555155155155555511551555555155155555155551555155515551551555555115515555551555155551555515555151555515515555551155155555515551551111155155555155555155111115511555555555555555555555555555555555555555555555111111111111111111111111111111111111111111111111$

は $517$ 桁の素数ですが、 $517=11\times 47$ なので長方形型に表示すると

$\begin{align} &11111111111111111111111111111111111111111111111 \\ &15555555555555555555555555555555555555555555551 \\ &15511115551111555111115515555555555515511111551 \\ &15515551551555155551555511555555555115515555551 \\ &15515551551555155551555515155555551515511155551 \\ &15511115551111555551555515515555515515515555551 \\ &15515555551551555551555515551555155515515555551 \\ &15515555551555155551555515555151555515515555551 \\ &15515555551555155111115515555515555515511111551 \\ &15555555555555555555555555555555555555555555551 \\ &11111111111111111111111111111111111111111111111\end{align}$

となり、色をつけると

$\begin{align} &\color{blue}{11111111111111111111111111111111111111111111111} \\ &\color{blue}{1}\color{yellow}{555555555555555555555555555555555555555555555}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{55}\color{blue}{1111}\color{yellow}{555}\color{blue}{1111}\color{yellow}{555}\color{blue}{11111}\color{yellow}{55}\color{blue}{1}\color{yellow}{55555555555}\color{blue}{1}\color{yellow}{55}\color{blue}{11111}\color{yellow}{55}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{5555}\color{blue}{11}\color{yellow}{555555555}\color{blue}{11}\color{yellow}{55}\color{blue}{1}\color{yellow}{555555}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{5}\color{blue}{1}\color{yellow}{5555555}\color{blue}{1}\color{yellow}{5}\color{blue}{1}\color{yellow}{55}\color{blue}{111}\color{yellow}{5555}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{55}\color{blue}{1111}\color{yellow}{555}\color{blue}{1111}\color{yellow}{55555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{55555}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555555}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555555}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{55555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555555}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555555}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{5}\color{blue}{1}\color{yellow}{5555}\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555555}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{55}\color{blue}{1}\color{yellow}{555555}\color{blue}{1}\color{yellow}{555}\color{blue}{1}\color{yellow}{55}\color{blue}{11111}\color{yellow}{55}\color{blue}{1}\color{yellow}{55555}\color{blue}{1}\color{yellow}{55555}\color{blue}{1}\color{yellow}{55}\color{blue}{11111}\color{yellow}{55}\color{blue}{1} \\ &\color{blue}{1}\color{yellow}{555555555555555555555555555555555555555555555}\color{blue}{1} \\ &\color{blue}{11111111111111111111111111111111111111111111111}\end{align}$