It’s approximately 2.652 × 10^32
I've heard mechanical keyboards can be expensive but I imagined several magnitudes cheaper. Seems like there's no way I could ever afford even budget model.
this post was submitted on 04 Dec 2023
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Unexpected Factorial
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When you use an exclamation mark with a number, you’re actually implying it’s not a normal number any more. It’s a factorial!
Ok, so how does this work?
5!=1×2×3×4×5=120
6!=720
These numbers get really large. For example:
15!≈1.3×10^12
So, next time you see a headline with 2000! in it, you’ll know what to expect.
There are also double factorials (n!!) and iterated factorials (n!)!, and they aren’t the same thing. Just add more exclamation marks and you get multifactorial. Check wikipedia to see how spicy it gets.
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It’s also beyond the reach of any government budget I’m aware of. Imagine having so much money you can make nuclear weapons, send stuff to space, but you’re still nowhere near buying a mechanical keyboard like this.