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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 #1100000009053961172 2,090 digits created 2026-08-07

Value

92759463416217021264328638069056556957265161509043126506364068020540410281748027687333739440288821640736623956029454543707616172010036984956121522652784599042660028564169393902485498313934320516305140248771156654002826392074864128297360213143797610638547974675746595499932625555946373556760589015350309935553606106795400148440102357355896030428671872541421065866997455277671470084225699281651118918899861234441101376305899137679498762772853492123323011261002409573649775967666728967722911889148627130852291297412453646185009548143678012675878375346853691544022322682222237631816109303935006267935008484844761947837541057367617263879926668469586307665646131666752134109320322147338337852750356267258275737138599333538784723044789303300307992073764070309201461080794470031877576504727061354290185841069321089510085149666875808040643995747836563111146888160409494813967188667148853494988299610577578504127016163171082130188632314496364437200921341636614258230762226344467602270345167214637042487877116656796598681245997604249214560273579534731097893078812264910274318845970036550776114100838081566182037597115947930729953731092808639182985221719299493859126520953451064545191661088869672684707080414827250407070987723526854120141561397961275121893846274692758203645550432130832847810283496640871473690789619713029629755469145719368095407639021257318433700568666198367936309233201333806692396635440299107871391998668910264377347649451129815818217425219065194337533156983886850115899628466403186592953758681324322407411160650307880107737357414293041591401874332849075594842874146713948746044008464975217551685050642067028381093732051511128087383822661325118639318551778544417878773230415581491039168384164523090524389558003010984295365491941740279577010982988247653230181240687117507521099976694280262589605353049421362495664190971890511501371521704516898127728073445695310331280554344941260442428720611919128380722254386327400659796173611840818833316621765129199945854811059558258425293006402848161606303846208978394764203451525797800230230578468729125694958806618721934967682184846999857155823
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 2,306-digit prime (174 intermediate primes).

Certified number2,306-digit prime
Certificatedownload
Certificate chainshow step 20 of 174

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053961172 --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":1100000009053961172},"decimal":true,"detail":2}}'