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Old 2011-07-03, 23:12   #1
LiquidNitrogen
 
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Default What does "Unverified LL" mean?

Sorry for so many questions, I looked around online and did not see this mentioned anywhere.
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Old 2011-07-04, 00:27   #2
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Quote:
Originally Posted by LiquidNitrogen View Post
Sorry for so many questions, I looked around online and did not see this mentioned anywhere.
I believe it means either:

1) the ll test has never been double checked or;
2) if it has been double checked the residues don't match and so a third check etc. may be needed to figure the correct residue.

of course I'm a crap source for information.

Last fiddled with by science_man_88 on 2011-07-04 at 00:27
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Old 2011-07-04, 00:33   #3
Mini-Geek
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Quote:
Originally Posted by science_man_88 View Post
I believe it means either:

1) the ll test has never been double checked or;
2) if it has been double checked the residues don't match and so a third check etc. may be needed to figure the correct residue.
Yep, that's right.
Quote:
Originally Posted by science_man_88 View Post
of course I'm a crap source for information.
Well, this time anyway, you were spot on.

For more info, see http://www.mersenne.org/various/math.php
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Old 2011-07-04, 00:44   #4
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Quote:
Originally Posted by LiquidNitrogen View Post
Sorry for so many questions, I looked around online and did not see this mentioned anywhere.
A more concise answer:

there has been at least one LL, but not two LLs with matching residues.

science_man_88's part 1) might be interpreted as including the cases where there has not yet been any LL test at all. But GIMPS does not count not-yet-LL-tested exponents as "unverified LL".

Last fiddled with by cheesehead on 2011-07-04 at 00:46
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Old 2011-07-04, 01:02   #5
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Quote:
Originally Posted by Mini-Geek View Post
Yep, that's right.

Well, this time anyway, you were spot on.

For more info, see http://www.mersenne.org/various/math.php
thanks for the knowledge I'm learning something. and the link ( I've already made a PARI version of that TF method, and it appears to work).
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Old 2011-07-04, 02:39   #6
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Quote:
Originally Posted by cheesehead View Post
science_man_88's part 1) might be interpreted as including the cases where there has not yet been any LL test at all. But GIMPS does not count not-yet-LL-tested exponents as "unverified LL".
Only your logic would delibrately misinterpret "an LL test" as
"not an LLtest"!

OTOH if you viewed an erroneous LLtest as "no LL test",
it might help you get the gist of my "MPs via DC" post.

Last fiddled with by davieddy on 2011-07-04 at 02:50
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Old 2011-07-04, 11:14   #7
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Quote:
Originally Posted by Mini-Geek View Post
Thanks, a great page, lots of good info.
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Old 2011-07-04, 11:17   #8
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Quote:
Originally Posted by LiquidNitrogen View Post
Thanks, a great page, lots of good info.
yeah like I said I've already tried implementing the TF method they use there in PARI and, I've already PM'd mini geek about something I realized about what a modified form of it might be able to do ( though the numbers get bigger quicker in my idea).
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