Math Worksheets

What is a Googol?

No, not the search engine Google, but the actual Number, Googol, which they kind of named themselves after… A googol is the number 1 followed by 100 zeros. So if anyone asks you how many 0s are in a googol? The answer is 100.

History of Googol – Googol and Googolplex

American mathematician Edward Kasner needed to solve a math problem using enormous numbers. His nine year old nephew, Milton Sirotta, made up the term ‘ googol ‘. Dr. Kasner made up the word ‘ googolplex ‘ to Mean 1 with a googol of zeros. Googol and googolplex are more simply written in exponents. the googolplex is the largest named number.

Other named numbers

Name of numbers	Number of zeros
billion	9
trillion	12
quadrillion	15
quintillion	18
sextillion	21
septillion	24
octillion	27
nonillion	30
decillion	33
undecillion	36
duodecillion	39
tredecillion	42
quarthordecillion	45
qumdecillion	48
sexdecillion	51
septdecillion	54
octodecillion	57
novemdecillion	60
vigintillion	63
googol	100