[QUOTE=RichD;431405]The factors are already posted to [URL="http://www.factordb.com/index.php?id=1100000000438704792"]FDB[/URL].[/QUOTE]
Thanks for the heads-up!
I'll take C175_130_86 then.

C208_139_42 is:
[code]p83 factor: 45831619772993771621436902009481460358214897190721836768086022318162905923744888227
p125 factor: 60098636156118680786421741283165998532642713242524057672634239848224633666919663276915208377552566218742348382597843387023083[/code]

[QUOTE=VictordeHolland;431409]Thanks for the heads-up.[/QUOTE]

I don't know where they came from. I first noticed it when sieving was entering the final phase for this number.
(i.e., it wasn't me.)

Not a first time.

[url]http://www.mersenneforum.org/showthread.php?p=430620[/url]

Home Primes 2 C190
 

This C190 is failing to get past the filtering step:

[CODE]memory use: 5120.9 MB
keeping 130919195 ideals with weight <= 200, target excess is 621457
commencing in-memory singleton removal
begin with 120472847 relations and 130919195 unique ideals
reduce to 119810431 relations and 130256401 ideals in 24 passes
max relations containing the same ideal: 200
filtering wants 1000000 more relations[/CODE]

There are currently 426,609,897 relations. Is there anything I can try to do to get past this, or does it need more relations?

[QUOTE=wombatman;431424]This C190 is failing to get past the filtering step:

[CODE]memory use: 5120.9 MB
keeping 130919195 ideals with weight <= 200, target excess is 621457
commencing in-memory singleton removal
begin with 120472847 relations and 130919195 unique ideals
reduce to 119810431 relations and 130256401 ideals in 24 passes
max relations containing the same ideal: 200
filtering wants 1000000 more relations[/CODE]

There are currently 426,609,897 relations. Is there anything I can try to do to get past this, or does it need more relations?[/QUOTE]

Is that with the default target density? Have you tried a lower target density?

Even if it builds with a lower target density, a few million more relations would render the LA quicker anyways.

Default target density. I must admit that I completely forgot to even try a higher density. :redface:

[QUOTE=wombatman;431429]Default target density. I must admit that I completely forgot to even try a higher density. :redface:[/QUOTE]

Lower density. Higher density is harder for a given relcount.

Right. Your question just made me realize that I normally start out with TD=120 or 110, and I hadn't even done that.

To be clear about my answer, I'm running into the problem with the default density, not a higher one.

IIRC, the default density for msieve is 70. If it won't build there, it's not going to build at TD=110 or 120. Can you build a matrix at TD=60? Not sure how low TD can go.

A few more relations probably wouldn't hurt but only Fivemack can help with that.

[QUOTE=pinhodecarlos;431407]Reserving C174_130_118.[/QUOTE]

Tue Apr 12 21:50:40 2016 commencing 2-way merge
Tue Apr 12 21:51:00 2016 reduce to 20024273 relation sets and 19711406 unique ideals
Tue Apr 12 21:51:00 2016 commencing full merge
Tue Apr 12 22:07:00 2016 memory use: 907.6 MB
Tue Apr 12 22:07:04 2016 found 27801 cycles, need 4100398
Tue Apr 12 22:07:04 2016 too few cycles, matrix probably cannot build

I release...