You might know that a googol—the digit 1 followed by 100 zeroes—is a very large number indeed. You might even know that a googolplex—a 1 followed by a googol of zeros—is an even bigger number. But ...

There are numbers out there that are so enormously, impossibly vast that to even write them down would require the entire universe. But here’s the really crazy thing…some of these incomprehensibly ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...