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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 #1100000009051642541 2,203 digits created 2026-08-07

Value

5050720412379487660716887375302570039721296498924666547899690670126019235754849433755826618569666011175103088744834295934722981324975473029254380894289800249539842519538294412625702383765979740707296945160894832241171417644650453161938815238188751713941613868845818830530476344455314374739092816774939071837163743513404155222352519128584648310199493115137215349852411660873796692343124465387411724445423758606373111896936655599740058450046134133673288827131601373941920251542182103269834449964505885506575640812668493713209561249611197423158585701420488750714326502445286306569156842988303624678632688740655503816635857204351653304910644136730094163061875595111284450668831681262839905075308018924134802900516191024190305134836932064320415579081947403584602300823720261477855855376222692924380972679335162508566218856809818120325895679463980167538031743930095622499617780922523669204164523646212525940366066578839017617198959188487936188579792819332908774308863699558590487482676045762764274109150877368378998143810363917460405776190668480605459872180257598196964666753057638875822738327035399406933675975155028984853771470112971481371254332810369175547602050099957667917656751362004282057456557518520726927273958074521429403930940924272248646287307164843491998800074885258224959136998775592602868674705138756147562873702675159602976965712754270080736785647858529258490248484700620944533416433859290036607207527435564840206588908720680521196843047617661548909961236178109966875923289271394523839546463945813240703508163286784656201669224499605891593201847152179170366047952118109479504753383835205837409970400715592919312481298509291837077176442926784342639023092336259155899761368395899007810288633734325677244138103358862614152781211271412669940557321309217865619599487898974229967168716373777064162039542748266061558603390465127091529401738179934277788144658305462545465127203626768946310999859448756970156765748680329616988664734171185143008087457585922785724257345981301368805871705949112696913187408608296092453207419543826155428748232856908755924151953440428974504070234129768161468727019209261440178924609001298396134556807990446731896524459690402012802707854168009874210433280323839348101358053
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 2,823-digit prime (204 intermediate primes).

Certified number2,823-digit prime
Certificatedownload
Certificate chainshow step 42 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009051642541 --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":1100000009051642541},"decimal":true,"detail":2}}'