I'll take C172_124_114 next.

C200_150_148 finally done
 

[code]
Sun May 8 11:09:41 2016 p62 factor: 87025056522712938932600836142751842575000599083042817996868513
Sun May 8 11:20:17 2016 p138 factor: 278419930232709322326780704066714176123722892549695550695303116458184803247117782504380600082741586464140286319494006689666247358377069213
[/code]

(the two factors found at slightly different times because I ran -np3 twice in parallel)

This SNFS-difficulty-285 is getting towards the edge of what's practical for individual LA - 564 wall-time hours on 7 cores Xeon E5-2650v2 for a 31.7M matrix built at density 125. Log attached.

(number queued 4 February; linear algebra started 4 April; linear algebra finished 8 May)

I'm going back to mprime and to sieving some medium-sized numbers locally, for at least a few weeks.

I'll take C179_125_59 next.

C172_124_114 factored
 

13 hours to solve a 4.6M matrix on a partially loaded Core-i5, -t 4 using target_density=124.
[CODE]p83 factor: 48585245192264911060148828740901730032637654647069348877118847818736384741987375357
p89 factor: 42027418213712999078298709380863759380421371924640671874737691342910003449815128948048893[/CODE]
This time I spelled target_demsity correctly. :smile:

C159_146_84 Factored
 

[code]
prp62 factor: 84706428404056788626340765983892309337181259272739121630936249
prp98 factor: 11219081105397638453685574995892262129500753454661435720557695382920682704287575159973869910704593
[/code]

Taking C191_134_45.

Taking C173_136_43

C167 from aliquot 3366:2132 completed: 20 hours for 5.6M matrix with TD=140

[CODE]prp53 factor: 54590920157424669805650939566645015746550965360978601
prp115 factor: 1454091295982441019597985537910685787160956157379719990336972359726424909297165412565882296402984882993145706841409
[/CODE]C200_127_55 completed: 12 hours for 4.5M matrix with TD=120

[CODE]prp78 factor: 310237929414306355083709598757698607177916738401038413633511372164336432463543
prp122 factor: 48025373014536960131003527920558838723630257068827597254928873601778693118057902897949937123573948925320327028288532039271[/CODE]Reserving C218_137_42 and 142^49+49^142 (from 15e queue).

11_239_plus_5_239 factored
 

135 hours to solve a 12.4M matrix on Core-i5, -t 4 using target_density=116 (TD=120 failed).
[CODE]p106 factor: 1485346558351000644953714201746717757442110162276128861920820164807404581714683882268922594978715352209313
p109 factor: 3191394075394159037031173446010090441583989337304687562136172529864291284220363006437077550614827787156523781[/CODE]

C179_125_59 factored
 

8 hours to solve a 3.6M matrix on a partially loaded Core-i5, -t 4 using target_density=130.
[CODE]p89 factor: 22854419650080087770113553828870663012142540167030041229163351292462134661377540369429569
p90 factor: 586395435856928900636077819976405459250578423827771873212136625456700816569939986741790839[/CODE]

[QUOTE=pinhodecarlos;433477]Taking C191_134_45.[/QUOTE]

Factored.

[CODE]
Tue May 10 21:11:58 2016 prp75 factor: 122098338557287653100801062202133228537934816801805073624523521396389051621
Tue May 10 21:11:58 2016 prp116 factor: 84036024998636220428075395484651486074462483452609861066398178491901315197821138824165608776202767610515753167343193
[/CODE]