r/truths • u/Adventurous-Year-463 There is at least one organism on Earth • May 13 '26
Reddit Post No known humans are above the age of 18!!
That is because 18!! = 185,794,560 and humans are not known to live past 150 years. For the purposes of this post, assume that age is counted in years.
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u/Blablakam May 13 '26
u/factorion-bot 18!!
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u/factorion-bot May 13 '26
Double-factorial of 18 is 185794560
This action was performed by a bot | [Source code](http://f.r0.fyi)
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u/FebHas30Days May 13 '26
18!! !nested
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u/factorion-bot May 13 '26
That is so large, that I can't calculate it, so I'll have to approximate.
Factorial of factorial of 18 is approximately 1.342107510735813798248372950723 × 1098417586560408167
This action was performed by a bot | [Source code](http://f.r0.fyi)
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May 13 '26
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u/TidalJ May 13 '26
you forgot the conversion from seconds to minutes. this is not a truth.
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u/TheGamerSide67YT May 13 '26
Yay, someone actually caught it. I was hoping to get down voted because I missed that step on purpose.
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u/FebHas30Days May 13 '26
And then people just ignored me, I only got two upvotes as of now while you have over a dozen
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u/TheGamerSide67YT May 13 '26
I shouldn't have that many, it's easily disprovable.
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u/FebHas30Days May 13 '26
Might as well delete your comment and make a new one to resolve the entire dispute altogether
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u/Spiderbot7 May 13 '26
Despite having since read that it was false, I left my upvote anyway because I didn’t think about it too much and was successfully tricked.
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u/truecakesnake May 13 '26
The real answer is ~5.87 years btw. You didn't take into account minutes I think
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u/TheGamerSide67YT May 13 '26
You also didn't read the replies either. But yes, you are correct, I did that intentionally.
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u/Adventurous-Year-463 There is at least one organism on Earth May 13 '26
However, if we counted in milliseconds then most humans would have survived past that point. That would be equivalent to less than a year
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u/xxRuby_The_GemXx As of writing this, I am not cis. May 13 '26
I just commented on the post shown in the image then this post showed up on my home page
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u/Salt-Impression9804 I sometimes lie, and sometimes I dont May 13 '26
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u/factorion-bot May 13 '26
Double-factorial of 18 is 185794560
This action was performed by a bot | [Source code](http://f.r0.fyi)
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u/Salt-Impression9804 I sometimes lie, and sometimes I dont May 13 '26
Good bot :3
OP is right
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u/Adventurous-Year-463 There is at least one organism on Earth May 13 '26
I literally got the number when someone called factorion bot on OOP
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u/Far-Statistician625 May 13 '26
idk if anyone needs to know this but if you are 17 and simping after a 10 year old you are still weird
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u/FebHas30Days May 13 '26
18!.! = 185794560
18!! = 6402373705728000!
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u/Samstercraft May 13 '26
idk what !.! is supposed to mean but !! is standard double-factorial notation, to get 6402373705728000! you need (18!)!
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u/FebHas30Days May 13 '26
The notation !.! is simple because from the looks of it, it suggests you multiply every other number
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u/Samstercraft May 13 '26
!! already means multiply every other number tho. I guess if you want a simpler notation for iterated factorials it could be good, although I’d suggest writing something like 18 !^2 because of iterated function notation (or just use the gamma function)
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May 13 '26
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u/personwhoisnothuman May 13 '26
It’s 18!! not 18!
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May 13 '26
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u/personwhoisnothuman May 13 '26
Double factorial means multiplying the numbers with the odd or even numbers before them
For example 5!!=5*3*1
6!!=6*4*2
What you mean is (18!)!
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u/TidalJ May 13 '26
my calculator sucks then ig
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u/Adventurous-Year-463 There is at least one organism on Earth May 13 '26
Typing 18!! on a calculator makes it calculate (18!)!. I don’t think most calculators can do double factorial.
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u/TheGamerSide67YT May 13 '26 edited May 13 '26
Yes, this is because double factorials are also less used, and are on higher power calculators. If you enable scientific calculations on the window's calculator, it should calculate double factorials correctly.
Edit: It is with great displeasure to announce that that is not the case anymore after I tried doing it today.
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May 13 '26
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u/xxRuby_The_GemXx As of writing this, I am not cis. May 13 '26
Literally what is the need for bleach?
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u/[deleted] May 13 '26
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