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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 #1100000009062571202 1,729 digits created 2026-08-09

Value

5389688971896173445031084893723670440429795819166173227862330518479764545653190283129744412052404235152046257164949851048764900310335564101620226519000940508064901711326788450814100868484903359553631546472952018920751327671934751884076879158777978492601138731038395136117347482961465984164719616543749419871600167776026620910237395234948888687071202563062251967054082299009196201323596817761114805202722316301518624363783074194046384500210515543919361667681853753900735532312651351903641806305928582908839934580828393016595954095853081569025006015860768584987566010378592834963323597810956946883092046693051754114224661687859852022706434662816604822323891588616964967417977469420036019612077061465303488552492527078549944520947014181193960037294023149654512607021665500636240076107294446317169575770935935185444974342193629828769896087739283038040800252847708279674912829222467037337519909997997536743376803176114740745849014312624376650694508006534748203727360961016297375216317157010835624241047288385322328728010241804071928113261273043546867225273605193657189628231719327321780965987508774283948329578936911374923091270326405296862112024290457921452264378200640075859565412819941651868928606064704172148067117763439302860958949988136065133461169266941693076632957001358335327194325064546718567715394329013134251400312349609690778612798658563214674799584171738969720557780074730715848333202466776062137935352562040052450550395816490850054763752917954600994878817954475305470951338749235156259431369080935795592883344994573774226608724087058071015366628412832999943130677252831999061127897826698640685387017608938395905867470941361218349594422992355061385314401692409873729140648622295184121536352006850423402866214148153919667
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 69 of the certificate chain of a 2,621-digit prime (191 intermediate primes).

Certified number2,621-digit prime
Certificatedownload
Certificate chainshow step 69 of 191

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009062571202 --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":1100000009062571202},"decimal":true,"detail":2}}'