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Challenge #187: Generate Prime Numbers

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12 - Quasar
 
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5 - Atom

Hi, Here's my solution, which is i think more efficient in terms of space and time complexity. Because it generates less rows compared to append fields or generating all the dividends. It is able to generate not only 0-50 but more than that, efficiently. It can generate prime numbers from 0-10000 by 1 second. 

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8 - Asteroid
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8 - Asteroid
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I love this challenge.. But definitely can be optimised.. I can already hear a whirring sound when I tested for up to 9999.

 

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5 - Atom

My solution attempts to be efficient with O(n log n). I avoided the append tool because on a bigger scale, if used, performance will be O(n^2) because it would generate n x n rows, more than is necessary to solve this.

 

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Generating the numbers from 2 to n is just O(n) and seems unavoidable.
But the second generate rows tool creates the minimal number of divisors to figure this out.

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8 - Asteroid

Math challenges are always fun

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12 - Quasar

On a spree to binge complete weekly challenges
Adrenaline rush

 

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This is my solution

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8 - Asteroid

Here is my solution. ; )

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10 - Fireball

#187

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Alteryx Partner
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Looking forward to seeing the different ways people solved this problem!