Definition
Eighty-four is the number that comes after eighty-three and before eighty-five. It is eight tens and four units. It is a multiple of seven and twelve. Eighty-four is an even number, divisible by 2, 3, 4, 6, 7, 12, 14, 21, 28, and 42. Think of it as a group of eighty objects with four more added.