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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 #1100000009051642530 2,220 digits created 2026-08-07

Value

279037848785131244556865543752057083100772079963040030692502283939675382650322597251309003780946964730642247611192396869431678489419308241393534809440003920214816052120935448783911614121916220146398985695881729715894438589285826862673192369818041577269409039469036746898752895642199830765245386577786981094387162676542873601991594746496746572165301510437797223068468153385648783095444467663899055172735296027902409904113026178360641713727651233945451134250677341003831494196216968763435447461951851373858668075034307154299337612481012872485500644666290730875342993727993724814942995693239270180200028763301628382220993293164140301219780807010603435535497126278555188204374583784743694630587674053657839383685001382070449074187620507878084342381960278999385794852683499562420375899234712429293015863062757917482988058012641820761198837830755558144766447311429528987853016878329502249577245191183120276896498850057295924091058352251570253071226178592945634773261202642511335960604806191000119176133638249837151857820549400441762013592691603639870080156803589748493079226937965518216563186760764530061519998233729409370155761829362300144313061409227010508164822535284468817422807113174444100088160938017125154974401380484032320957412816128285573787763590094283837531547323310063639506164835409499250025115295760993675460964895430202062035868047484066532489644037041960034696057201197812659860149395142546123786196330210794946714495896052371955563296771292520437657860899899667449458981119370614197447542990212844903526216407496693006337332303308856672806920732907664240165619018451375737145398513645593593210861746981269807274574235891271727209503666691416745001888640067980383124547047556452121298790950399032027527103818703970832439666177184466741832469091617735611126804745084130172054271684471040080029387184685843596795042026757501899759141175435918873277780352675050227967327833452969938260738174483748093116727036847263300994264473455302437107080229720263193583969981045909126889055249297728606303410300929977959753276544632894983962048113736284374251171083622779471163445630199362176296684095695672684456849288053864839687314305028120839483109802663414919621831266311542990218933100457695395037537973067935080462409
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 41 of the certificate chain of a 2,823-digit prime (204 intermediate primes).

Certified number2,823-digit prime
Certificatedownload
Certificate chainshow step 41 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009051642530 --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":1100000009051642530},"decimal":true,"detail":2}}'