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The Magic Cafe Forum Index » » Magical equations » » Calc this #3 (0 Likes) Printer Friendly Version

Nir Dahan
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Use 3 "3"s to get to 20 (not restricted to the 4 elementary arithmetic operations)
pxs
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(3!!/3!)/3!
Nir Dahan
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You got it!
Turk
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Quote:
On 2004-04-28 05:54, pxs wrote:
(3!!/3!)/3!


PXS,

Would you please be so kind to translate this formula into "English" for we non-math majors? Thanks.

Mike
Magic is a vanishing Art.

This must not be Kansas anymore, Toto.

Eschew obfuscation.
pxs
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The '!' symbol (pronounced factorial) means "multiply together all the numbers from 1 to x"

So - 5! is 5x4x3x2x1

So - 3! is 3x2x1 which is 6
and 3!! is 6!
Turk
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Thanks, PXS. Whew!! Now I know why I didn't quit my day job to become a mathematician.

Mike
Magic is a vanishing Art.

This must not be Kansas anymore, Toto.

Eschew obfuscation.
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