'Number' in the Bible

The Midianites, the Amalekites, and certain groups from the east lay encamped in the valley, as thick as locusts. The number of their camels couldn't be calculated they seemed as numerous as the sand on the seashore.

So the tribe of Dan sent from their families five valiant men of their number from Zorah and Eshtaol to scout the land and search through it. Following their orders, which were "Go and scout the land," they came to the mountainous region of Ephraim, arrived at Micah's home, and stayed there.

So the descendants of Benjamin did all of this: they chose and carried away just enough wives from those who danced to meet the number needed, then they left to return to their inheritance, to rebuild their cities, and to live there.