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Old 2020-11-17, 17:18   #30
chris2be8
 
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Sep 2009

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Quote:
Originally Posted by EdH View Post
Am I treading on your algebraic factor work, Chris?
No, I've stopped that (there don't seem to be any left in this range).

Looking at a few in the 70+ digit range most of them seem to be from factordb running ECM against a large number and finding a composite factor (the product of most/all of the small factors). Just click "More information" and see what it says it's a factor of. It's probably true for the under 70 digit range as well.

I'm currently adding algebraic factors to numbers with status unknown. At present they nearly all seem to have algebraic factors. Just look at http://factordb.com/listtype.php?t=2

And I think the limits have been raised recently. Which is just as well given my 1 PC working from 70 to 79 digits seems to be factoring about 1 number per second!

Chris
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