Group table for the character group for $\textrm{Gal}(K/\mathbb{Q})$

$K$ is the global number field defined by \( x^{2} - x - 172 \)

$\times$ \(\chi_{ 689 } ( 1, ·)\) \(\chi_{ 689 } ( 688, ·)\)
\(\chi_{ 689 }(1, ·)\) \(\chi_{ 689 } ( 1, ·)\) \(\chi_{ 689 } ( 688, ·)\)
\(\chi_{ 689 }(688, ·)\) \(\chi_{ 689 } ( 688, ·)\) \(\chi_{ 689 } ( 1, ·)\)