Googol is a big number. The search engine was famously named after it. There are several ways that we can think about Googol. Written with exponents, the number can be represented like so: $$ 10^{100} $$ If you expand it out you would write a 1 followed by 100 zeros: 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000