Question

What is Graham's Number​

Answer 1

Graham's number is an immense number that arises as an upper bound on the answer of a problem in the mathematical field of Ramsey theory. ... Graham's number is much larger than many other large numbers such as Skewes' number and Moser's number, both of which are in turn much larger than a googolplex

Answer 2

The largest known prime number has over 17 million digits. A googolplex is10 raised to the googol power, so it has approximately a googol digits. It takes a while to write down a 1 followed by 100 zeroes, but we can do it. But Graham's number is different.