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Composite Details

ID: 91 | 2120 digits

15717277764100964130606433900890577022857465313360358788658522455343413892988636161419844335460120160411411328031506143064401194767303866103083165353078219924640250954987059611582428479776849050982540594452096283865959592636851913887076031339230070972607975090358503623846089054144967129806261853767072976508437297118959662875538470243178232855277671159386824906279267283144364966587221660345079551929441536224058010522962036465101702220893840904879608975666077282878997943875010159240752518096812995614020506108402471833964150573010438117793440715673915505851722111330698992301881546498636447304762513398129087755706824737204083331386449994492143053786992034208425617030153108589327488848051767757598681400024963146761935544401993800213186548292132368302954308454660904836118652958948140066062197480083556779130287226021967915588200960648558876686264977485132951265226267774920555265489778185485264172133166954523941668282192086228202840457022978910743071971609510099240114928461024832226020532716149013703941910838296672688924779722250739283578217688362771318105864233017982368180025449499327784938366895121970481083293649397189736038894691340368374295012139457081525274353115706389234936675223055066209238017478992317149420053516143654424068640080077471060902973325875959449432857953632163585101269463796321126522815168576770073516994635762963533282999035954755526131701077050059519602172023626893454897570925300421705312329701998274265010616596859235506866251203437771888821540935605687947438944437668687928197982616845457712816707392561697891061376353068613929927764015361269540033548324872029796894044252263066479343011998132359161829488960248010900333726281268788886166328993373438390144541737594414354429262948764749921605337548695487812198562271554180097919577847124222464572524111724447562200287922701858534628974067025858881889455866820963890462812475197349258499872391813163764849766908143196159817776494138622439828249891066103824391702464378711318830363766515486643964828568114921147056991020254280414789186513305750067364035187488519128535238397672398368709786612132832665715657331225917580638835626827173

Composite Information

ID91
Original Form(20456128940675458472244936035087443057760315556130436734735086661325421469036650002762058528565658363273008112142066631389020490409762907282294205866492325239074668795119922659731651830220873120169488055798238003096984833255638053102451595067958162306933370843912386500511517444058263296455748435451416679750350119018907927255629232172656713065298700642950120961^7-1)/(20456128940675458472244936035087443057760315556130436734735086661325421469036650002762058528565658363273008112142066631389020490409762907282294205866492325239074668795119922659731651830220873120169488055798238003096984833255638053102451595067958162306933370843912386500511517444058263296455748435451416679750350119018907927255629232172656713065298700642950120961-1)
Current Composite 1571727776410096413060643390089057702285746531336035878865852245534341389298863616141984433546012016...
Digit Length2120
SNFS Possible No
GNFS Equivalent N/A
Priority3
Created2025-10-01 12:53:34.736277
Last Updated2026-03-05 15:43:58.075850
Status Active

T-Level Progress

Current T-Levelt28.62
Target T-Levelt85.0
Progress
33.7%

Work Summary

Total Attempts4
Total ECM Curves3,691
P-1 Attempts0
Factors Found0

Factorization Attempts by Method

ECM 3,691 curves
P-1 0 attempts
P+1 0 attempts
ECM Statistics:
Total Attempts: 4
Total Curves: 3,691
Factors Found: 0
B1 Range: 11,000 - 250,000
B1 B2 Param Curves Factor Found Client Submitted
250,000 Stage 1 only 3 3,072 None KyleAskine-PC_V2 2026-03-05 15:43
50,000 20,318,772 1 256 None kruoli-och 2026-03-04 15:04
50,000 Stage 1 only 1 256 None kruoli-och 2026-03-01 22:52
11,000 Default 1 107 None kruoli-IOS-5 2026-02-27 12:52
P-1 Statistics:
Total Attempts: 0
Total Curves: 0
Factors Found: 0

No P-1 attempts yet.

P+1 Statistics:
Total Attempts: 0
Total Curves: 0
Factors Found: 0

No P+1 attempts yet.