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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 #1100000009053961129 2,137 digits created 2026-08-07

Value

7779587684349460298966529633452081275917746151088394588570162672708845639407067960553005318735433056385582504615042934743166313883787751567699798024974108288571533880918068464900457564620594413633281585874894640815253228425809038696956020930637160674031737827659908776769783453863884967983471872960181621172071183818132770492629004606762197853052163960158055761685346614683170366859801143990279255960407596516281982082449899363561468190949451833054009716911496399764945883573531997125901507799358161610834165449605164328733295408956416403027545601970721759355554398960745805788221387164913210021843916953608507239332728831383124913571085032451158630033012387430695501561920802239793764905927165244461622477517982473190605732654904078758838281784530983532162670823381540841162202635920785656719107936789335260212307229805996823706135812027417410322764382911419797840082778065265863642321604768716526474025241089603009678147778381125958179643390371329216675900316588275080940168726989232125101073836781779652564939918415028235534076181935031889772384350400797510704926566263356623841256443085403666709336457219666610941285620295643631024489259073749408269924274479276416624985866263590631886741085713937517933696297374196345421750818510297286465404184402926111997721633428041052768043114217585056114212862742643479609513320883952527491316366163526000287866759822194956038964631827915246716453207241049784573291702501538380729150006943377494453936769651334108569779992464250559991293954681707655148923704252761760316914211157102632097034763539530849907191115383442779047793151808051460060474590672513614665199158841047863777183509296343795846151619997838708503305724572912765213265398529949508024375754158414117757250819019609378334192580506263790230850896413292157026381913607987375607305962664354712450042085199804543951354916983452270712853342895337560216353439664046498523169707936270825564219145067874385359763633387370456102805787760098392215725349986619979389464663324127135742532333675608933630246302547069282033322517694756827830236129906290425380673503947480924314485853249484414962013264936613343099264492634567276098456310356239
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 16 of the certificate chain of a 2,306-digit prime (174 intermediate primes).

Certified number2,306-digit prime
Certificatedownload
Certificate chainshow step 16 of 174

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053961129 --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":1100000009053961129},"decimal":true,"detail":2}}'