More than a MillionMillion: 1,000,000.Billion: 1,000,000,000.Trillion: 1,000,000,000,000.Quintillion: 1,000,000,000,000,000,000.Sextillion: 1,000,000,000,000,000,000,000.Nonillion: 1,000,000,000,000,000,000,000,000,000,000.Centillion: 1 followed by 303 zeros.
Infinity is not a number. Instead, it’s a kind of number. You need infinite numbers to talk about and compare amounts that are unending, but some unending amounts—some infinities—are literally bigger than others. Let’s visit some of them and count past them.
Regardless of the circle’s size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14. But pi is an irrational number, meaning that its decimal form neither ends (like 1/4 = 0.25) nor becomes repetitive (like 1/6 = 0.166666…). (To only 18 decimal places, pi is 3.141592653589793238.)