\begin{array}{|l|l|c|}\hline \textrm{Partisi Soal}&\textrm{Proses mencari digit terakhir}&\textrm{Hasil}\\\hline 2012^{2011^{2010^{2009}}}&\begin{aligned}2012^{2011^{2010^{2009}}}&=2012^{2011}=...2^{2011}=2^{4.502+3}=...8\\ &=...8^{2010}=8^{2010}=\left ( 2^{3} \right )^{2010}\\ &=2^{6030}=2^{4.1507+2}=...4\\ &=...4^{2009}=4^{2009}=\left ( 2^{2} \right )^{2009}\\ &=2^{4018}=2^{4.1004+2}=...4 \end{aligned}&4\\\hline \end{array}