By SNFS

[code]
c158 of 190404170853677489^11-1
SNFS difficulty: 172 digits.
Divisors found:
r1=418656044304513545568174090237294628088467042390922619594048617 (pp63)
r2=44536892276749419015618771012530583582661913012730485741481762429744712880889037405642071424811 (pp95)
[/code]

By SNFS

[code]
Number: 52298600195189^11-1
N=966310893710618112932305195788179935656812367146017498643477071732033732227097258409012264411607801449083387117095727
( 117 digits)
SNFS difficulty: 137 digits.
Divisors found:
r1=123602824720994032437807539279799977565930240549101 (pp51)
r2=7817870634363338164389848850272563768799718670308723578350865270027 (pp67)
[/code]

From t800 and other t files by Rich Dickerson (pulled from the composites page)
[code]
529342895154607572118679632158666333395781007196865486765660619^3-1
P56 = 31909971941982909368540786252904477511224431494374621631
P61 = 3323267784333638569157914764632612247349920293870052541809163

3803514659576984349713470259244000865348869880318080815126659810746213139^3-1
P53 = 57767102932650408896685763605859253426693591021124613
P64 = 1921336134307058999399088776668250311483245898762746486333083197

3276335037979689181119237247315390207360270224358374071202031880745607^3-1
P56 = 10435374920783323581618304931001080292569787650688751987
P62 = 11358614880874752927712901961906739544695152933358718922750493
[/code]

653_79_minus1 done
 

ECM
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
653^79-1
prp66 factor: 105618857712797629719043097073914380580370265587786792205942275107
prp142 factor: 5940500090758508128961324241568177862329453556041120766166950281877495825927470824393418834399622550723482427101986888781918909997983574523861
[/code]

2153_61_minus1 done
 

ECM to 2/9 of SNFS difficulty
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
2153^61-1
prp72 factor: 391080026906646971715953647411503697977808552286084884642667228024281913
prp129 factor: 245797757216804401868489955344780592540531330306056929439036837294211838371148570216601310885116515705234170148119981363862749077
[/code]

1291_73_minus1 done
 

ECM to 2/9 of SNFS difficulty
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
1291^73-1
prp76 factor: 4262590495876223493821636724805876720955722579804210481757707522370211410821
prp104 factor: 13957337147382481946038609183887480482923856243731829752532767633378456558253354269704419148247622826179[/code]

683_79_minus1 done
 

ECM to 2/9 of SNFS difficulty
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
683^79-1
prp92 factor: 39499622026783186225523671537589490560097818627659648620475581838491126342104220938448844853
prp108 factor: 243049475697069203279650353684856754425059554536030616669310046397487103113318906498194493825125498556515893
[/code]

2129_67_minus1 done
 

ECM to 2/9 of SNFS difficulty
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
2129^67-1
prp59 factor: 16613863977284049604667327860814529437319482865152318492567
prp81 factor: 124560871356710665172448124166959016625465181556923554368540081884380702327703589
prp82 factor: 2207727181240373757073200485084547869224224094832483917427957098654635930928900897
[/code]

683_73_minus1 done
 

ECM to 2/9 of SNFS difficulty
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
683^73-1
prp72 factor: 755781345594146931790381467325264067474196788180953446627981898655012407
prp121 factor: 6843605720458162926433763689491237734341842866161529844231924249458961449360883285830382486741785757712292999788607367341
[/code]

ECM to 2/9 of SNFS difficulty
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
2069^67-1
prp104 factor: 17396258002454208287991874944758396640109546137839275657385788719016483662086630242392365097740803342813
prp116 factor: 39805813157047197914238062298344157154655927881004510271873106264222123702054138216962382520104150593230960041295707

[/code]

3543791_31_minus1 done
 

ECM to 2/9 of SNFS difficulty
SNFS sieving by RSALS
Post Processing by Carlos Pinho

[code]
3543791^31-1
prp88 factor: 1415876503547623913967491348886039463740178200616143255723495612208234076863458772585253
prp110 factor: 21528698382792974545420949886540886213524471193901051527956645134824490622958471623246413861369835480352390877
[/code]