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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 #1100000009122750603 2,089 digits created 2026-08-30

Value

2688755957499373354597379311820290393254227724361713978871815478791474686781916715274599101171993362234001144778477181147179136955016634697021068633683624639923729090409021911717238155127063115355912280431088985019882859986485966958062985847199892389801130822721821785491827880705256149857617428988037097153908333037096647329764714248996323597783027541726323827124413491769496257204303664796039528665738547562371008874290438986277538462649974524158233303414122035909090259914066960938723533290740971900712788113466677883858807391442711511111810444464348271024973072197533520365350731026203261052165910347909317251371722001222000721522788742037149567030510336523383618173203946600833604396055372262397991822685329144083514395617474574969363233825302279062658040512554873641579528006465531867423624602861828520721348191555437412386229344821144625461784289687152241078421856357294764908974539930261692888174811541747547007855342474696028480828193861529216629943197994543440455369565901544110678902794097021667431348604314395419145569597518610745572626782300892788802703020839613468641151590619983642850958186839539472771196353159549341403218199441176006631741543191771185900481529876770231933658932349464611166921153998693987456882428773731386749587928699765613999137575329699557627718373734367548217007980275928516550562111070016708135263174077553229633301996811971184445166471083142051497819024398567040436671737888945950764198900435136839266565864314700464040347222182301514315774111471019139906397541872123389099999430801534868629348357583604028596727616462234899068617225991660231789516259092349040896615832543290097127702135091435303948261017167815937610251342373585390920111966111996695633629692369997864338061414387313672789122525621547358234938184290097868310552228327131245314970913229020316208399899440713569293368271837247256742010900565177205512082936264978928987411479402899419596180170567659814595286277294612056342256449231621907344309465204937558295095007010690193699688689097754080341898695424811853573908890008369765141478230882063354795976321087910100963019162786078283139
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 16 of the certificate chain of a 2,256-digit prime (240 intermediate primes).

Certified number2,256-digit prime
Certificatedownload
Certificate chainshow step 16 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122750603 --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":1100000009122750603},"decimal":true,"detail":2}}'