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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 #1100000009054649947 1,216 digits created 2026-08-08

Value

8979057050353789106824237175734644979805136132467373135754948836293306218509790321088029053366806212270448126983610053082015106058841561836589797041106487204258987157321343535540013945952794447400348609961766317137291447263579353538701979410249312260147174208710356728529987830680422616688851065816371606796579796702508644548353725026234856413166039554605400068353876045271771826622778201768583049193229189016864791266007665156612767296831119998334934329862893339642785624835837322022930529664617111791484268100707170435337747703289864202166230883234290263171396696764367954486158143941201299401953989948929682762116267125712536560734589916814662611726033836468503705588565754493512104118956257390329662491009922824582956579183387836057595335984184868283736710061635365875859571524760539810431847146667623279986575879118829417918713543066678257109338086538227029164945510067021820668830047394443584841331518022155399529118480926023740552946697118288030466592536446029883515443230659437189896210581623335297222519671478637824332236334724705676627974312314114912553586228868162543051576825697787785068017191144957319154468097796147883407749719543294416609647564348638203304448412651741508067379503439386587249302783123
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 2,221-digit prime (168 intermediate primes).

Certified number2,221-digit prime
Certificatedownload
Certificate chainshow step 80 of 168

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054649947 --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":1100000009054649947},"decimal":true,"detail":2}}'