Thread: Head, meet wall
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Old 2007-03-05, 07:20   #6
schickel
 
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"Frank <^>"
Dec 2004
CDP Janesville

2·1,061 Posts
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Fivemack,

On the other hand you could do what I do. I start out with a number and put it Dario's ECM applet (http://www.alpertron.com.ar/ECM.HTM).

This has the nice feature of taking out all the small primes and any easy ECM factors before I put any remaining composite into my (smallish) ECM cluster.

As a bonus, Dario's applet also prime checks the final factorization before pasting the results into the sequence file.

And as one more bonus the applet will also perform the sigma calculation, so all I have to do is subtract the previous result right in the applet to start the next step off.

I'm currently extending three sequences right now; I might take on a couple more as the numbers get longer.

Later,
Frank
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