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Real Big Numbers - Sudden Death

Which of these terms are real numbers, according to their appearance in peer-reviewed math journals? One mistake and you’re finite.
Quiz by
Dimby
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Last updated: November 29, 2025
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First submittedNovember 29, 2025
Times taken144
Average score57.1%
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Sudden Death. Clicking a wrong answer ends the quiz!
Bajillion
Belgatillion
Billion
Brazillion
Centillion
Decillion
Demigorgon
Duodecillion
Eleventeen
Floomplex
Googol
Googolmultiplex
Googolplex
Kajillion
Megillion
Millardon
Million
Negatillion
Nonillion
Octillion
Oodle
Quadrillion
Seventillion
Sextillion
Sixty-Seven
Tretratillion
Trillion
Ultrapavillion
Vigintillion
Zillion
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12 Comments
+1
Level 68
Nov 29, 2025
I think having "five" in here is cruel, given the suggestion from the title that only big numbers are correct.
+2
Level 83
Nov 29, 2025
I’ll change it to something better… 😏
+2
Level 34
Nov 29, 2025
"Sixty-Seven"

-_-

+2
Level 83
Nov 29, 2025
It’s a large number!
+1
Level 61
Nov 29, 2025
No comment...
+3
Level 83
Nov 29, 2025
Great quiz

I hate you making me click 67 lol

+4
Level 83
Nov 29, 2025
Also you are really good at making wrong choices for your sudden death quizzes, always very funny, sorta plausible looking options.
+2
Level 83
Nov 29, 2025
Thanks! I try to force myself to think of what users will feel and think when they see the correct and incorrect options.
+3
Level 65
Nov 29, 2025
There is no blooming way the only two I missed were quadrillion (obviously not that big compared to most real numbers on here) and effing 67
+2
Level 71
Nov 29, 2025
😥You've been corrupted by your students now...
+3
Level 83
Nov 29, 2025
Only about half a dozen of them. Maybe one more.
+2
Level 63
Nov 29, 2025
Fun idea. All of the false answered seemed somewhat plausible, even though the stats say only six or seven have been picked.