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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 #1100000009053590989 2,018 digits created 2026-08-07

Value

12737384889981410624690858406590225298039694088832345827891716030100702173894137881327635313941323921159737080269171499682362010054097649125990856832852576053717713626606168502599322113933569015676909303437101899703847266057228971938711092538971094524981762789408881659735896797451149277139264971800210246540372586541123211850737095812911155551008269976394290076418924471396477406104851751369121467959259932862845873180836136814814919097401282968793143971638595254973537458429905829930920463190672049210599789683037935851814076900078577274691914331012403578681241202431651913402887860100326633620884410024023509152087563094567514046657117360281775146196061156599639065665060041802820331332519459640176782947425899844328029286660344021646889367213765848661220269755546303915703930893577817784073301487293796709857520474480539780740401545909521590843609912571299082661620627387257688622649310583962908015223481682419046505465596834761145035593047897819322544324743832358563636363466293433391811178409228495238437398774571234473978918218652002866139397991935831072800685729069580588355270395680658586538626441777020264607783831843407504732136163299595244584268621223119261647002339940969100627360005806447556965350127303083156181603812087011731834438318908109529969235028714051653688666428840553342650275617043861432781325642447508996168972169953620415673836289932101166118524143778434849864822482423246505248323953911463900060047291923638023670146868216740893032988214188548420845594293494846860143998460661445501926834729184493344594231434484757029338970551862251413741657279488509826777391308036514628607638529854993361166627714435169949564636346134973714331642573696975831926936397141928987437992556177650942474375268154507623382387626030224600495327877576345539661626188019972764997125837682575440466680978158584195673649696574425716672849591480032326434845404039068571562315801139670305782698945479111450381181725496751884114259452477195656494462666416303308531195567107558488505767563748161549541039046843138057799
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 15 of the certificate chain of a 2,203-digit prime (166 intermediate primes).

Certified number2,203-digit prime
Certificatedownload
Certificate chainshow step 15 of 166

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053590989 --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":1100000009053590989},"decimal":true,"detail":2}}'