30 from Ephraim, brave warriors, famous in their own clans—20,800;

Read 1 Chronicles 12:30 Using Other Translations

And of the children of Ephraim twenty thousand and eight hundred, mighty men of valour, famous throughout the house of their fathers.
Of the Ephraimites 20,800, mighty men of valor, famous men in their fathers' houses.
From the tribe of Ephraim, there were 20,800 brave warriors, each highly respected in his own clan.