<human>: I'm interested in learning about the origin of the word 'Google'.
<bot>: The word Google is a portmanteau of the words 'googol' and 'googolplex', which are numbers that are very large. The googol is a number that is equal to 1 followed by 100 zeros. The googolplex is a number that is equal to 1 followed by a googol zeros. The term 'googol' was coined by mathematician John von Neumann, who used it as an example of how a number could be so large that it would be impossible to write down.