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 #1100000009028491681 1,165 digits created 2026-07-31

Value

1670441287390791828675367131068868587491204241332959813192730480507990105802421892361345916639606602062000830547304587248799894291038665573450195851909269446230916938739040311086534154332639783924003624345510220434278304618183480356577195052717500133054647480750678637945837115703595382490338301054660105676933463034364925251082917298951308396560848780059127686744808709225650905220088336465962384564748755669134380228865928694688274486533626621041007015040091692531261716156712885399663086546895110955403038359371951704386805225624690253113675498957954630959159008527768349358541424115991557792805979265019841292103659566409390079469969590720822122175895801297944069264816026644176399066355674144904279443687961671703478808447617772925803083893310669590171419361208559881510268414692170460483956168683457101014297864208269964916999143883975711072469336864213257442785726399788371308685809507752347950749519643317398007435563670031122998305029727611272313305691523225926325249900993457854084245521284085992557840095572848932266980119910653298324776158640826369339998201043481129533356631681418647098601378242203627218432320546265993249539729346065825810081889717209
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 1,207-digit prime (95 intermediate primes).

Certified number1,207-digit prime
Certificatedownload
Certificate chainshow step 5 of 95

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028491681 --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":1100000009028491681},"decimal":true,"detail":2}}'