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Old 2003-11-30, 04:01   #1
Sep 2002

2×5 Posts
Default Any glory in double checking?

Just wondering what you guys thought... For a guy who only has one computer is there any glory in only doing double checking?
If not I'll stick with the 10mils

Eagerly awaiting M40 =0
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Old 2003-11-30, 04:17   #2
outlnder's Avatar
Aug 2002

31810 Posts

No glory in DCs. But a lot of fun.

You might think about picking a range of exponents that are not currently being done through PrimeNet. Say the 23, 25 or 27Ms. They aren't 10mil digits but who knows, you might find M41 or M42.
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Old 2003-11-30, 05:35   #3
GP2's Avatar
Sep 2003

50318 Posts

In June 2000, a mysterious prediction was made to the Mersenne mailing list that "M40" would be in the range of 13M:

Sure enough, M39 = 13466917 was discovered 15 months later.

The same guy predicted a prime between 10.5M and 11.4M... and the leading-edge of double checking has just recently moved into the 10.6M range.

If you believe this prediction, there may just be some glory in double checking after all...
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Old 2003-12-02, 02:18   #4
E_tron's Avatar
Sep 2002
Austin, TX

3·11·17 Posts

You go through more numbers when in DC (because they are smaller). This increases your odds some, however DC work is mainly for early generation (and Celeron) like computers. I run a few DC machines for good measure.
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Old 2003-12-02, 04:33   #5
geoff's Avatar
Mar 2003
New Zealand

100100001012 Posts

If nothing else, doing a double check now and then will give you peace of mind that the other results you are turning in are good.
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Old 2003-12-03, 02:20   #6
clowns789's Avatar
Jun 2003
The Computer

6178 Posts

There's a 1 percent chance that LLs are wrong, and there are probably hundreds of LLs so it could be.
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