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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 #1100000009093802928 2,043 digits created 2026-08-19

Value

188488592009102116130022931702188264851650141005360442783275240224487880045184683266721713738433606849151921684256485462966597643768684899057831230377091825897617724353721364837123309682847339367629242115920248686588829078942084012326939571660722569245738185399878322777633358723681932971707715425811936763937333059907240452185657444188236131614281855306187678352008329007944193033043892474799750340522432403010572608856029799286775731542588028872159889534982443289698543585636476257638747625265457174951697993211816439956546277019896745844276953168623922613686441390698724460987712759481319681088720777141773592312812144263748623827289201889225578739429189858818293555051491847187632115255553247038173591214958183146594758646405100611069364344286300038237385985717382340795889939738273348772432589048102273103877884457111386958770003755902277986551376799243455978304327565499877965453273984207610348022393397352542077081742140593662665643163689532822964035702415986425510107770718958234848917382061025088890821087997587417528873091827095499325863941845196136887352422240642751007140189540362904091127362438432612886841474151169456992297282129129814221212508449560864063233062020734823201094988343640851158539110013427825879701224272213914860847905813024739246975698608168187471396539263602791519473599426660788733768552230140346874530416930725922514031952047159291489002495420598290744060014286267195865743500495898107342843348479608610376410585920480930661500817581449608131644749317371333236016412090055347494674364708930008261631883405600261079876694389743241256708574296515943804906334936391141090106026940236898305070205750661521957338220333078618774706109143945241913030782774049274579902642850795002178533867112483304569349505721406727178592452313733441407606605067438817143081552625457143426154305031140088261280933992367547164185400485872898103554617536784719257911573491892828218773044767898700418193053098716250159972259309927453398860287759476494207646386813879230454975305454645275155430728677889303130537507391201436955205307121
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 12 of the certificate chain of a 2,195-digit prime (164 intermediate primes).

Certified number2,195-digit prime
Certificatedownload
Certificate chainshow step 12 of 164

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009093802928 --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":1100000009093802928},"decimal":true,"detail":2}}'