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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 #1100000009054573962 2,250 digits created 2026-08-07

Value

321855269474429622240134684686603216178673917564151231462550166641502028631397321743136063418934000213967620370975810291463388120646619986103409173509678950839761691938581753099868112564199832775558340759895808781495356400585901119996806730031058263807116505975158593505763544919953464153360859366915336533110521212087053301679338900499695304571168325458352740366442723340738271934339395290429793993521411948220689454875653563843736931595418689252190095897756659109589481238685125368469411742599064910656734674281660095504377139290713003975247985849239475161167577504273901588594880942884363554787337249417496615988049716155604692030230011968577955496491777601204904808577773095592624429628226935377200459594534425640416849733492699679817453807110710507201166725234534688557919207232184469104250992562826052314436829853635764675658983097389402686716911909169620106240383053136853784699572886787997529183340746220764106545281919787150727056524142568138487897263483039923102200435362875283176421487863892103799251369955688805030464457265939055666236863584265847176782224611173732158434326257103233815666066844834174655606933099177261076411463137510332040733298946891301941315404190639446941347143375315543732271752422093172195642149994649926278672456710634731433784752878024546768272822322881662907680252052591030251882640187857865544782040525551036778409598798831146495934975979907937676952007009488847603003661242391707838642688711778441397332143685099895073971878296145311639363307386166516242053416791576748879739082584295697172414450705905116757830005268880721653916630842162881027990233960020939354763831658611222483223487114699903903460349844347966188263690462864505472486919543666938953007369667013945527819693644871067501366016352824978045784001182612025328628819593639755372418956563732611522798356415590963727324273008767555900117301244105671568372255945466966500158841709930250230069982750031563130731148977443454425553021663196510568389952229183507456803888764636208023476278875111666113251935814557230161243233560266179532473364220434276347864215503103255086193082901414783373700961599952983235882613387829653457835835301497263114065649132361888420935696967563111426896413199608683503426240732318506074142591111664293454557033234465081639
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 49 of the certificate chain of a 2,863-digit prime (220 intermediate primes).

Certified number2,863-digit prime
Certificatedownload
Certificate chainshow step 49 of 220

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054573962 --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":1100000009054573962},"decimal":true,"detail":2}}'