Numbers 2:9, 16, 24

All those listed of the camp of Judah, by their companies, were 186,400. They shall set out first on the march.

All those listed of the camp of Reuben, by their companies, were 151,450. They shall set out second.

All those listed of the camp of Ephraim, by their companies, were 108,100. They shall set out third on the march.