The most famous number in Targum Pseudo-Jonathan's account of the Exodus is seven. On Exodus 12:37, as Israel moves from Pilusin (Pelusium) toward Succoth, one hundred thirty thousand strong at the core with about six hundred thousand men walking, the Aramaic says they were protected by seven clouds of glory on their four sides.
The arithmetic does not quite add up to seven geometrically, and that is on purpose. The clouds are not simply directional. The Targum enumerates their functions. One cloud above, so that neither hail nor rain fell on them and the sun could not burn them. One cloud beneath, so that thorns, serpents, and scorpions could not hurt their feet. One cloud in front, flattening the valleys and lowering the mountains, preparing a habitation in advance. The remaining clouds went to the sides and the rear.
This image of the clouds became central to rabbinic theology. The Talmud in Sukkah 11b says that the festival of Sukkot commemorates these clouds — the protective canopy under which Israel walked for forty years. The flimsy sukkah roof that Jews build today echoes the original cover: more spiritual than physical, but real enough to protect a nation for four decades.
The Targum also adds a homely detail. The children rode. The six hundred thousand men went on foot, but each man had five children mounted on beasts of burden. Israel did not leave Egypt alone. They left with their families, their sons and daughters, carried out into the desert under the cover of God's glory.
Takeaway: Israel walked out of Egypt inside a traveling cathedral of clouds. Every sukkah ever since is a small reminder of that roof.