'Eighty' in the Bible
And Solomon assigned seventy thousand men {to bear burdens} and eighty thousand {quarriers} in the hill country, and three thousand six hundred [men] to supervise them.
And he appointed from them seventy thousand {to bear burdens}, eighty thousand {to quarry} in the hill country, and three thousand six hundred overseers to make the people work.
When Rehoboam came to Jerusalem he assembled the house of Judah and Benjamin, one hundred and eighty thousand {chosen warriors}, to fight against Israel to restore the kingdom to Rehoboam.
And Asa had an army [of] three hundred thousand from Judah, bearing shields and spears, and two hundred and eighty thousand from Benjamin [who] carried shields and drew bows. All of these [were] mighty warriors of strength.
and at his side, Jehohanan the commander, and with him [were] two hundred and eighty thousand;
and at his side, Jehozabad, and with him [were] one hundred and eighty thousand armed for war.
And Azariah the priest, along with eighty strong priests with him, went in after him.