69! - Numberphile
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Uploaded by numberphile on Dec 8, 2011
69 is the largest number that most hand-held calculators can factorialize!
Professor Laurence Eaves from the University of Nottingham explains.
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windows 7 calculator 180! = 2,0089 * 10^329
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79: 7+9=16, 7*9=63, 16+63=79
19: 1+9=10, 1*9=9, 10+9=19
379: 37+9=46, 37*9=333, 46+333=379
the magic number is 9 and this is only because we calculate in decimal system!:)
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Am I the only one who, when looking at a math problem and seeing a factorial, hears a voice shouting it in my head?
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69 ME BRAH!!!!!!
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I have that calculator too :)
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I want to be that smart reaaaly bad but I'm just not willing to work that hard on it lol
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@kevinjonassupport156 as did i... as did i
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6! would have been easy! What was he talking about? Just time 120 by 6.
720
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I'm sorry, but... Seriously? The number is interesting because your shitty CALCULATOR can't handle it?
Come on... And I was expecting an interesting video about the number 69...
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I discovered this by myself in 8th grade algebra like last month, it's epic to see that it meant something.
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Another interesting thing about 69 is
6+9=15
6*9=54
15+54=69
ZxIOnline 2 days ago 120
'Error' comes after 69!? I thought it was mouthwash XD
LOL i'm sorry i know that was a bad joke i'll go back to my corner...
phantomfangurl 1 day ago 12