Editing 2835: Factorial Numbers
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| image = factorial_numbers_2x.png | | image = factorial_numbers_2x.png | ||
| imagesize = 628x481px | | imagesize = 628x481px | ||
− | | noexpand = | + | | noexpand = false |
| titletext = So what do we do when we get to base 10? Do we use A, B, C, etc? No: Numbers larger than about 3.6 million are simply illegal. | | titletext = So what do we do when we get to base 10? Do we use A, B, C, etc? No: Numbers larger than about 3.6 million are simply illegal. | ||
}} | }} | ||
==Explanation== | ==Explanation== | ||
+ | {{incomplete|Revised but needs review from an actual mathematician. Also, are there any practical uses for factorial numbers? Do NOT delete this tag too soon.}} | ||
+ | -> There aren't any practical uses for it, mostly because it uses 9 bases, which would take many years of numerical base training.-> | ||
A {{w|factorial}} is a product of positive integers. For instance, four factorial, written '4!', means 4×3×2×1=24. | A {{w|factorial}} is a product of positive integers. For instance, four factorial, written '4!', means 4×3×2×1=24. | ||
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The number at the top of Cueball's presentation, 353011, is 3×6! + 5×5! + 3×4! + 0×3! + 1×2! + 1×1! which gives the decimal value of 2835, the number of the comic. | The number at the top of Cueball's presentation, 353011, is 3×6! + 5×5! + 3×4! + 0×3! + 1×2! + 1×1! which gives the decimal value of 2835, the number of the comic. | ||
− | Cueball's examples of numbers written in | + | Cueball's examples of numbers written in factoradic appear as sequences [https://oeis.org/A007623 A007623] in the OEIS. |
==Transcript== | ==Transcript== |