Using the known procedure, we get that the greatest common divisor of 188094 and 244122 is 4002, and the greatest common divisor of 395646 and 4002 is 138, so 138 is the sought greatest common divisor.

Number of solutions: 34.
Let's determine the greatest common divisor of the following numbers:

188094, $\quad 244122, \quad 395646$.