Current Events > What are positive integers x and y such that x! = 720 y!

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FLOUR
08/23/23 8:44:54 PM
#1:


Yup, that's x factorial equals 720 multiplied by y factorial. There should be 3 solution pairs. Can you find them?

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ZMythos
08/23/23 8:46:31 PM
#2:


x = 720, y = 719 is one solution pair.


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Giacomo_Hawkins
08/23/23 8:47:10 PM
#3:


x = 6
y = 1

That's one.

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warlock7735
08/23/23 8:47:27 PM
#4:


X =10, y =7 is another

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Giacomo_Hawkins
08/23/23 8:48:25 PM
#5:


All three in five minutes. We're a bunch of nerds.

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warlock7735
08/23/23 8:49:19 PM
#6:


I find it funny that we got them that quickly with no repeats when I didn't even see post 2 when I started typing.

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Giacomo_Hawkins
08/23/23 8:49:49 PM
#7:


warlock7735 posted...
I find it funny that we got them that quickly with no repeats when I didn't even see post 2 when I started typing.

And I didn't see post 1, though it's the obvious answer that should have occurred to me first.

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Damn_Underscore
08/23/23 8:49:50 PM
#8:


CE does TC's homework

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