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10^Googol (Ten to the Googol power), or 10^10^100. In decimal form, a Googolplex is a 1 followed by a Googol of zeroes. It is physically impossible to write out or type out this number, even if all the matter in the universe was transformed into ink and paper or data disks.

Source: www.wikipedia.org
Googolplex is the largest named real number ever created.
by Jani Green April 14, 2005
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(noun) A person who sits on the front porch and intimidates, says negative things, or otherwise makes things unpleasant for those nearby.
The boys walked past the house of old man Thompson, the neighborhood porch dick, who always assumed they were up to no good.
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A number equal to ten to the power of a googol. That is, 10^10^100.

If you wanted to see an example of a googolplex, you would have to look at the entirety of the universe on a subatomic level: the estimated number of atoms in the universe is around 10^10^78.

If you tried to print all of the zeros in a googolplex in 1 point font, the result would be a line that could stretch from one side of the visible universe to the other (60-80 billion light years according to current observation and theory) and possibly make the trip around at least once more, assuming that there was enough matter in the universe for that process to take place.

And the googolplex is not the last number that we have assigned "googol" or "plex" to.
Any example I could give wouldn't mean anything to you because of the sheer scales I would be talking about.

For an example of a googolplex, do some research on quantum theory, the quantum inflation, and multiverse theory.
by Aumaan January 01, 2005
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Googolplex is a really large number made up of googol and plex.
googol is a made up word to mean 10 to the power of 100 or 1 with 100 zeroes after it.

Plex is 'plus exponent' which means 'to the power of a positive number'. (the alternative is minex, 'minus exponent' which is 'to the power of a minus number')
so googolplex is 10 to the power of a googol, or 1 with a googol zeroes after it.
That number is really large, it must be a googolplex!
by Triadne September 02, 2019
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The number of calories in a Big Mac.
I just ate a Big Mac and now my stomach is a theoretical impossibility. I'm gonna go take a dump . . . It's gonna take some plumber to unclog that!
by Conway79 August 23, 2004
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The number represented by 1 followed by a googol zeros. Often misspelled as "google", a search engine.
Dude, your mom's so fat, she's like a googolplex pounds.
by atemperman January 24, 2004
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