Couple things to note: Quadrillion is spelled incorrectly, a square pyramid has 8 edges but only 5 vertices, and division is not an antonym of multiplication, it is the inverse operation of multiplication (In fact, division is a form of multiplication. For instance, 4 divided by 2 is the same as 4 times 1/2, and 4 times 2 is the same as 4 divided by 1/2)