"and place over them officers of thousands, officers of hundreds, officers of fifties, and officers of ten": "officers of thousands" — six hundred, (the population being six hundred thousand); "officers of hundreds" — six thousand; "officers of fifties" — twelve thousand; officers of tens" — sixty thousand. So that all the officers of Israel totaled seventy-eight thousand and six hundred.
Place Over Them Officers of Thousands, Officers
Mekhilta Tractate Amalek 4:17