\[\boxed{\mathbf{134}.}\]
\[1)\ НОД(a;b) = 2 \cdot 3 \cdot 7 = 42.\]
\[2)\ НОД(a;b) =\]
\[= 2^{2} \cdot 3^{2} \cdot 11^{2} \cdot 19 =\]
\[= 4 \cdot 9 \cdot 11 \cdot 11 \cdot 19 =\]
\[= 36 \cdot 11 \cdot 209 = 396 \cdot 209 =\]
\[= 82\ 764.\]