\[\boxed{\mathbf{891}\mathbf{\ (756)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[Пусть\ a - искомое\ число,\ \]
\(тогда:\)
\[a\ :7 = x\ (остаток\ x) \Longrightarrow\]
\[\Longrightarrow a = 7x + x\]
\[при:\]
\[x = 1 \Longrightarrow a = 8;\]
\[x = 2 \Longrightarrow a = 16;\]
\[x = 3 \Longrightarrow a = 24;\]
\[x = 4 \Longrightarrow a = 32;\]
\[x = 5 \Longrightarrow a = 40;\]
\[x = 6 \Longrightarrow a = 48.\]
\[Ответ:числа\ 8,\ 16,\ 24,\ 32,\ 40,\ 48.\]