Says a Student

I was listening to the conversations around the lunch tables at school the other day and heard this one:

Says the first student, "The biggest number in the world is 99."

Says the next, "No, the biggest number is a billion"

Says another, "No the biggest number is a kazillion"

Says the first student, "No the biggest number is a kazillion and ninety nine."

To which no more comments were added and many heads nodded.