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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009126643929 2,728 digits created 2026-09-01

Value

1318672540333126661755795792104352472604669686524761918373484180866540945363170759878204188709443483660827470404354507371900803759251815105575896593608152540988304076407705658546933918656970235417313587427337359057163628155918948891271878026526477700378139557824300664392031331885139246098900276604600607520829707398722901111916960904588004903371637161532316403554151131999335850946154925209796511175654398201803352082821324546859963410126937828886409462274409358305970882424813549337473557463815189215914023199017533436386985804222384016355692945607138272782463653510419446964106437414442246828416016356018649628057681631570384087860476956628226270205419356441071004448233593097100321253905563937337999364623335765700936283957563837285602310559542611065025079338604758005234571497236448430474799540779436550731763387707174357476322580528556373427147502849973848732298833543217266261548886847727519567874046589820783384069812572468900262571130197223247608321440945846260295579565362925548801472444774928857629538228007004613241283051805337702106719941132645958873123235685517173420307886341141230716737114823160764770527522131620427625298343495211519824720672815214573046316121178240680777080007781914742238000536450853686478692536463141272450958839927367862172905191274623493293201720254402310053891514486623685406376057027276001960914743154333064137190936853825004046440583782987158567686411062838145302668336012377727999533365196407800656665893513899719269926595901189113472571063067781751682128604918433691605248147764551770413772359690643395863025938582062579756072978408930270665455489800437359138085918950885024042266565455442609663750378794429063715096734666850257533720213887730677376729794516222417068898644987414066097169391352321817057877828272328936478713982340197499874593059776161771159897719746424822028152094503368248724833806925722253929281652947515707756885327751958939607594283102808146059769001393089463248061721368518978177306665295145053400053120081060773885768263409967338909348506393082710880093340584582292547320255146549596137170208462028009604085852714701140517533965819594777171307525069777856233277380673445136530804769292171000561923573576175825935359304824152111823987920323891910094113018284259124607659825837152854720775771161347671196167154767101359029929006167832780698979013142423591516903066366256344122628188804353957410654684840124246102969380617946575310876100748998949742491138273627068913101963644293492676922662638297158984524618766409361511140790683605571961180926995949260981410631214460311553175407852939080025870822315984850324641262623336593064997954610768602612330550852714364078836555058197587949014789808107196582067562107037149517112239732485900869519175950297295850363567169
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 39 of the certificate chain of a 3,110-digit prime (313 intermediate primes).

Certified number3,110-digit prime
Certificatedownload
Certificate chainshow step 39 of 313

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009126643929 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009126643929},"decimal":true,"detail":2}}'