Dear Mike,

Thank you for the question. This added new terminology for me and led to the discovery of an even larger number:

Googolplex
From Wikipedia, the free encyclopedia

This article is about the number. For the headquarters of Google Inc., see Googleplex. For other uses, see googol (disambiguation).
A googolplex is the number 10googol, which can also be written as the number 1 followed by a googol of zeros (i.e. 10100 zeros).

1 googolplex
= 10googol
= 10(10100)
= 1010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

History
In 1938, Edward Kasner’s nine-year-old nephew Milton Sirotta coined the term googol; Milton then proposed the further term googolplex to be "one, followed by writing zeroes until you get tired". Kasner decided to adopt a more formal definition "because different people get tired at different times and it would never do to have [boxing champion] Carnera be a better mathematician than Dr. Einstein, simply because he had more endurance and could write for longer.".

The time it would take to write such a number also renders the task implausible: if a person can write two digits per second, it would take around about 1.51 × 1092 years, which is 1.1 × 1082 times the age of the universe, to write a googolplex.

The even larger number is:

Even larger still is the "googol multiplex", which was defined by Paul Doyle (University of Maryland, College Park, 1981), using Knuth’s up-arrow notation as , where "Gp" = a googolplex

Now we know what they call the largest number possible.

Thank you again for the information.

With kind regards,

Samer

Dear Mike,

Google meaning is known to many, by in any event, this is the official meaning:

Why is Google Called Google?
Googol is the mathematical term for a 1 followed by 100 zeros. The term was coined by Milton Sirotta, nephew of American mathematician Edward Kasner, and was popularized in the book, “Mathematics and the Imagination” by Kasner and James Newman. Google’s play on the term reflects the company’s mission to organize the immense amount of information available on the web.”


Have a nice weekend.

Samer

Dear Mike,

I came across this definition that I thought you might find interesting:

http://en.wikipedia.org/wiki/Postulates
The word "axiom" comes from the Greek word ἀξίωμα (axioma), a verbal noun from the verb ἀξιόειν (axioein), meaning "to deem worthy", but also "to require", which in turn comes from ἄξιος (axios), meaning "being in balance", and hence "having (the same) value (as)", "worthy", "proper". Among the ancient Greek philosophers an axiom was a claim which could be seen to be true without any need for proof.

Maybe one time, a case will come your way and you tell its Owner that he has an Axiom.

Have a nice evening.

Samer

Dear Mike,

I will select the answer = +/- 3.

http://en.wikipedia.org/wiki/Square_root
" Every positive number x has two square roots. One of them is , which is positive, and the other , which is negative. Together, these two roots are denoted . "

Best Regards,

Samer