Question Number 145002 by mathdanisur last updated on 01/Jul/21
$${Find}\:{the}\:{last}\:{digit}\:{of}\:{the}\:{number}: \\ $$$$\mathrm{1}^{\mathrm{1989}} +\mathrm{2}^{\mathrm{1989}} +\mathrm{3}^{\mathrm{1989}} +...+\mathrm{1989}^{\mathrm{1989}} \\ $$
Commented by mr W last updated on 01/Jul/21
$$\mathrm{5} \\ $$
Commented by mathdanisur last updated on 02/Jul/21
$${Thank}\:{you}\:{Ser} \\ $$