Ya'akov went to Aram before he went to Mitzrayim. How long were his descendants to stay in Mitzrayim? We know from the prophet. It was 210 years, 6 times 35, where 35 years is the time that Ya'akov spent in Aram, from age 64 until age 99, the two ages given here.
Here is the Siman, and its Perush. The 35 years of Galut Aram represent the 70 years of Galut Bavel, until Zerubavel. The 6 times 35 years of Galut Mitzrayim represent 6 times 70 years of Galut Edom, until 5786, until Tzemach. A word for the wise, for Pesach.
