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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 #1100000009054707426 1,737 digits created 2026-08-08

Value

111947404247291125225487655264939605616137764933198541215315552814087046051255834022529918073747728128218887399353916823377254610500095389505071400251867936526002315840858956070609070457583181034885986139187691819294738443720975623525276796962761991202116350434660861066805278204301734738700244685340054698712923374328806752452174289421602765275499479930420489217959755031434805160794874425766921785501316674790672013020621182865981751769499599034043567432171022346250234847167749121992979774987692708257284923071295626489797881521021070478931995634742900182918800942678577274100123114424987664122051975703317600828668505628036915457801619190127611729650069102176398513461822368303274857740679118415577936725605851821586365481093993655938342888293105637239512895549328495039092881749429432845617998765399133774746203975047167142510374967103824356071353475896561084513348679797950472471533834099045873379564093338922968508607801849224643051818583785656560688713851922088775336994060481645811217053638221003440507722524361048045614685436041632897636016134815172062187348405709911842659960058709882410211684871588614177132229971501407876285968560386021774140243420507383615021932824120423416284983674192235640438360671294932390749854549627543589728124778789984659346495299225900340002131973908675975714859140187986430718395071249754507433022948913480223529115915003018347658127319398606550237303319341441823255059212232076227275291968238939733037147033351160883158706873736019102800919048988403280698695687222315406792228903389373052264974101635983881787652731174911799035347426412573340345008042524872286457764966463688453226652702619331021032294918894525599323038475339531947734409297448044597287062953281438421276072420258925824353417841
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 40 of the certificate chain of a 2,221-digit prime (168 intermediate primes).

Certified number2,221-digit prime
Certificatedownload
Certificate chainshow step 40 of 168

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054707426 --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":1100000009054707426},"decimal":true,"detail":2}}'