Question

Answer 1

Có cái nịt

Answer 2

\(\overline{abcdeg}=10000\overline{ab}+100\overline{cd}+\overline{eg}=\left(9999\overline{ab}+99\overline{cd}\right)+\left(\overline{ab}+\overline{cd}+\overline{eg}\right)\)

Do \(9999⋮11;99⋮11;\overline{ab}+\overline{cd}+\overline{eg}⋮11\)

\(\RightarrowĐpcm\)