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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 #1100000009127304489 2,106 digits created 2026-09-01

Value

404729171611493520013908051108167154484484870133190459531043600640626885491878130068325869936748515108498394938298914989795780139348422955954839031481626747556120197249257184359040006427335618094928391352651047352425508743588584379857831394715746331808571397499803644176001569237271921337338422849937421487190509766228283847027004970231003950352918509970866251397664127884400403086983492150633111201655880994090244841813447125052350182377208316835014201198577478969197210389401423418047246100099135018209568921735092925490137136988326106037597984378797946690748034295688705980913055486217235364850362629282354589082570180217208443806789772455046283899871687876174932324951162545760618532248286542678833457974741126431454845793520849503548257550223984741567813575528373709372736030381927023827708652012563153683569409246245476821179424985686865888820459858472396652379478297129276935069355632126303513096746544983607222908249710698979517316704757133670002366673212056409089674574262483063789461742195941542352002088853130260604745394166693892812046677513722333241709325856604058270758319072864903644666156220248711068365257509350074688709368681227931324574157061104606451581136176853512810732448478438980266516127385269701893272146149799134949910703298134225843384735292609511375797454254851130465483010549332094289706879203024339973849512333075747848850828428101462868119960735360783256891302615214213030706152177880873729469334429896615874927483144584539525873350799686054691830751058049084754361474666277011499455504056684378301691350686014198332232811233402304563921019310066618849791809995970594379116264207611708884159560189413261074343624090851861874296828185569217428503977769640397294319113252817893402697616576780237383977407267385276988867871250714155191799321923894657487709910006675608556074226921047733400459311266411780214319818802697752668383089133434590674130895150193527318331679525651479500624283351803097796072689559278915617839677042965107526833562716883477694839885609615136916481791929629329847071564733738749082192380933913138338201121507287496471237523659929387743880307156524513579
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 98 of the certificate chain of a 3,105-digit prime (328 intermediate primes).

Certified number3,105-digit prime
Certificatedownload
Certificate chainshow step 98 of 328

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009127304489 --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":1100000009127304489},"decimal":true,"detail":2}}'