Googolplex: The second largest number with a name. A "1" followed by a googol of zeros. Googol: A large number. A "1" followed by one hundred<span> zeros.</span>
The largest named number in the world is a googolplexian.<span> Because numbers are infinite, and any number can be made larger by simply adding to it, the largest number in the world is defined as the largest number that has a name. </span> <span>A googolplexian is described as a “1” with a googolplex of zeroes following it. A googolplex is described as a “1” with a googol zeroes behind it. A googol is equal to a “1” with 100 zeroes following it. Most of these numbers are too large to have any value in equations, and they are rarely, if ever, used by mathematicians.