I love math and numbers. I am also intrigued by how little humans understand large numbers. Most people probably don’t know what comes after Trillion, and really, that’s so large that nobody really needs a number much larger than that. I knew my number system up to decillion. I had to turn to Wikipedia to see what was next. Growing up as a kid without Wikipedia I thought a googolplex was the largest number. I knew a googol was a 1 followed by 100 zeros. I didn’t really know what a googolplex was. Now that I got Wikipedia I know we have numbers way bigger than googol and even bigger than a googolplex. There is such a thing as a googolplexplex. And actually, the googol named numbers are just special named numbers. A googol is really 10 duotrigintillion. A duotrigintillion is 10⁹⁹, so 10 of them would be 10¹⁰⁰, or a googol.

A googol is so large that there are less atoms in the observable universe. The estimated number of atoms in the observable universe is 10⁸² (or 10 sesvigintillion if you care), much less that a googol. Now onto a googolplex. A googolplex is 10^googol. It has more zeros than there are atoms in the universe making it impossible to even write out long hand, and yeah, a googolplexplex is even larger.