Challenge #426: Perfect Numbers

[gawa]

@AYXAcademy It was a great pleasure to meet your team in person at Vegas. 

The 4th perfect number is found!

Spoiler

By using this nature of the perfect number, we can narrow down the numbers to be examined, otherwise calculation never ends.

[nSpire]

Spoiler

 

[RWvanLeeuwen]

It would be great for performance if I could filter rows directly within the Generate Rows tool, but embedding my filter within results in a broken loop... Looking forward to see how others tackled the data size explosion (if that is possible without batch macros)

Here's my take:

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I wish I could use the generate rows in a more custom manner, with one variable declared on how to loop, and another variable which I want to output. This would - I think - drastically decrease the memory needed for this workflow

[aatalai]

C426

[DaisukeTsuchiya]

Spoiler

[JasperMB]

Solution

[JasperMB]

And now with workflow attached

[alacoume]

Brute force... 

Spoiler

[Dlawless610]

Here is my solution

 

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[olga_strubbe]

This was a fun, creative challenge.  Thank you, @gawa!