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Old 2006-10-10, 09:07   #199
akruppa
 
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"Nancy"
Aug 2002
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Yes, I had the Stage1GCD=0 option set in prime.ini, to keep mprime from stopping after stage 1 due to the obvious factor 3.

Alex

Edit: Cheesehead, throwing the exponent n away for a[I]n[/I]+1 numbers would be a bad idea, as their primitive factors are of the form kn+1 as well, just as they are for a[I]n[/I]-1 numbers.

Last fiddled with by akruppa on 2006-10-10 at 09:10
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Old 2006-10-25, 08:40   #200
Flatlander
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"Chris"
Feb 2005
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http://www.tomshardware.co.uk/2006/1..._prime_number/
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Old 2006-10-25, 09:18   #201
Cruelty
 
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May 2005

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Quote:
Originally Posted by Flatlander View Post
Quote:
The new number would have taken 4000 years to calculate on a single computer.
According to benchmark page it would take my computer "14 days, 4 hours, 49 minutes"
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Old 2006-10-25, 09:45   #202
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Quote:
Originally Posted by Flatlander View Post
Quote:
The new number would have taken 4000 years to calculate on a single computer.
LOL - seems they don't understand how GIMPS / Primenet work.
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