Thus, the greatest common factor of 68 and 102 is \(\boxed34\).**Question:** A linguist studying the evolution of language families models the spread of a new dialect as a circular wave expanding uniformly from a central point. If the wavefront forms a circle with radius increasing by 3 cm per second, what is the area of the region covered by the dialect after 4 seconds? Express your answer in terms of $\pi$. - Veritas Home Health