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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 #1100000008946988074 2,091 digits created 2026-07-07

Value

561058486646571687011059340688350453893566071671165142141766128861016092279018995658515049023862758997856861836015738192439319263411846256471137941470850589311193158505750718623341527093655916579234305746450458049838266804699873541256570491967443451863932677612459751693378648472945578876731194151929430105376942592364250914822694693409200804207416768370011371989940585544462276536004139677306869113230818621356598058598565931827422783566616545528931230580524388002515562871334430663777952252137515684122447857785141708962705542069938781484019768952158701550313515414455177176767294672430615237137048283222546629236099193616200022801221771894284407800292223106544948708636810473507932385056332108234602977752567519991827509124908566320513139159831302823538908291858589628541984794335957674904738775052226734377332956251313962960623729398101992905689223146675427680409314697667685460399349980751451825914211119756939235520539573942209619114633188396003625833385488675773107675983772770619846168188584573662867161148200383944394970555531765289749580806441351974127140460596373085314402363948395227186912940807944179843951940160980628258550296318204584885771402115280469672316706942131692296546583639215910613079055654640925074793090125556026951086335517351332218630848324886854208297731774400357249122163746697020886489451647808505956727286020368325623142496535181384715472908856586469434414803740311585747560525642795827242589642547334825196400037423033877232238450391133956385463601773487402592370671555855242680377636266254290339910775212018955806668007594899136171634105084093926124433972592543197518914703011676667145840119873273276341027144801696291202266942910042012162237571577791899329178525511229294616656389544117647175962140920194614808251382760265507420130007697422895604249883464833702833971864468822383150230266945112804238463452940682739560770151167803797278901430636055424085698617993276544535587232669767446617063606716866380706099028660522405605256434917112442916970382440204730918040363945552769561944037445116634658897231657312194360757437421074556648903384871439507952117
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 41 of the certificate chain of a 2,616-digit prime (190 intermediate primes).

Certified number2,616-digit prime
Certificatedownload
Certificate chainshow step 41 of 190

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008946988074 --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":1100000008946988074},"decimal":true,"detail":2}}'