Yafu takes only Aliquot Sequences. Of course there are also some small composites to be done on those sequences.

Perhaps it's already known, (I didn't search around), but one of the 79 digit entries in the composite listing is a certifiable prime:

[URL="http://www.factordb.com/index.php?showid=1100000000900935563"]1111111111111111111111111111111111111111111111111111111111111111111111111111091[/URL]

It's a blocker for working up from 76 digits. Random work can still function, but every time it gets picked, it wastes a machine cycle. I've set one of my faster machines to cover that area and am moving all the others above it.

Edit: Just to add, that most of my machines will be set to work within 300 composites above an 80 digit low end, with a couple covering the 76-80 area. That should define an area to help deconflict with others' work.

It's been known for a while. I've updated my scripts to ignore numbers that are already prime or less than 19 digits (there are several such numbers that factordb thinks belong in the 79-84 digit range).

Chris

[QUOTE=chris2be8;467550]It's been known for a while. I've updated my scripts to ignore numbers that are already prime or less than 19 digits (there are several such numbers that factordb thinks belong in the 79-84 digit range).

Chris[/QUOTE]
Thanks. I probably don't really need to worry about it. But it gets annoying to keep seeing it show up frequently if I'm trying to clear a small region. For now I've adjusted my machines to mostly avoid it.

mindig is not functioning correctly now
 

The mindig option appears to be acting up. I'm getting a lot of 6-10 digit composites being returned. When I try manually, via http, I get similar results:
[code]
[URL]http://www.factordb.com/listtype.php?t=3&mindig=80&perpage=1&start=11[/URL]
[/code]should give me an 80+ digit number, but it doesn't.
[code]
[URL]http://www.factordb.com/listtype.php?t=3&mindig=82&perpage=20&start=0[/URL]
[/code]should give me 80+ and up, shouldn't it?

Thoughts?

These are known problems that have been around for a bit. I believe it has to do with a number followed by several #s, such as 5####. There is an inconsistency between the input parser and another internal evaluation process.

Syd did a great job on this website and was trying to please everyone. I think anything more than two consecutive #s should be ignored or return an error.

Until Syd finds time to work on it you are going to have to find a work around. Bummer...

[QUOTE=EdH;467480]I noticed that c112s are much more scarce than the surrounding composites. Your work, or is there a different explanation?[/QUOTE]

That's me. I picked a particular size and tried harder on those. It taken a few months to get it that low.

[QUOTE=RichD;467561]These are known problems that have been around for a bit. I believe it has to do with a number followed by several #s, such as 5####. There is an inconsistency between the input parser and another internal evaluation process.

Syd did a great job on this website and was trying to please everyone. I think anything more than two consecutive #s should be ignored or return an error.

Until Syd finds time to work on it you are going to have to find a work around. Bummer...[/QUOTE]I'm familiar with the ## troubles as you have seen over in the primo certificate (PRP) thread, but didn't notice these are some of those troublesome culprits. But, what about the earlier one I posted? It has no # symbols:
[code]
(10^79-181)%(10^79-1)/9
[/code]As to a work around, as long as they are small, they're just a nuisance, but larger ones can waste a bunch of effort

[QUOTE=sean;467565]That's me. I picked a particular size and tried harder on those. It taken a few months to get it that low.[/QUOTE]Thanks for the explanation. You've made quite a dent.

[QUOTE=EdH;467583]But, what about the earlier one I posted? It has no # symbols:[/QUOTE]

Sorry, I'm not familiar will all the DB problems. I've seen some inquiries return no list, which is a bit frustrating.

Did C100s really just increase by 20k?

Actually closer to 23K but not by me. 🙂