What are the greatest common divisors of these pairs of integers?

What are the greatest common divisors of these pairs of integers?

a) 37⋅53⋅73,211⋅35⋅59
b) 11⋅13⋅17,29⋅37⋅55⋅73
c) 2331,2317
d) 41⋅43⋅53,41⋅43⋅53
e) 313⋅517,212⋅721
f) 1111,0