factordbrpc · fdb
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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 #1100000009055701991 1,969 digits created 2026-08-08

Value

1087527033680699832420781866680048153041496215960347968458725796171275625703381092178146522628600987849345774544428927011736374361727391003336355353803149496339646728808702898780716684543458973650377575405473652245121596782333269432490411571993624410133388036257419475848109275348803998485922333227726976694639747747397729733538457542347772950841637448416808745344036175216426362693094252856778816030888339492410721623001056610476557354905360513254923644929622174959665204908463514768245210428320711539756429145148932712471717811319645671830663220083962751579664216314280485516681679719593091816689342250941372112400840004381758886576557827698703703392810899810226609342454239671038972356526335174569671581572104632098508874847324836097773941632573782976472803931442674205614988305663987653849979565081729537851972311498372935125004303283324631812488455829192149246111207980267682419795435999385304770517175915380312333648313355541301211548361888953265726892668106731359088003952231164067936173369633258742944846739851249331884541860583380881984687463006008937627622329623617732453071872581563602788272219614313010088915463802625215673975994020149358065657584209014707147979582611075752736487067442747832348506655163993561776020505950309256504690300990546510247328833381782009219858860901973870558808740528668467165023762339475777804462036601080413727984094991485952916470689400743709680773649904536951794518358269832051295099413838198546745270214563954152491302556140551489781881898808121366672892346634440712009997353940135627414446260447632619227054340982219370711125421517662314930325319092869392081051825348597943121898656031832391508722726497963390985674190957675665606008030783559947402528066432493578894998952845717312098540084207365966023109266165980700921033498945563702579280763955672130481949808601962762543169577797343800246298538882873583775867296691367222810341621459474312208510122185885739037586105345475980570798459007322336395897570410687667956572177
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 19 of the certificate chain of a 2,229-digit prime (170 intermediate primes).

Certified number2,229-digit prime
Certificatedownload
Certificate chainshow step 19 of 170

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055701991 --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":1100000009055701991},"decimal":true,"detail":2}}'