\[\boxed{\mathbf{44\ (44)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 273 < x < 290\]
\[x = 275,\ 277,\ 279,\ 281,\ 283,\ 285,\ \]
\[287,\ 289.\]
\[2)\ 2725 < x < 2737\]
\[x = 2727,\ 2729,\ 2731,\ 2733,\ \]
\[2735.\]
\[\boxed{\mathbf{44}.}\]
\[Проверка.\]