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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 #1100000009055621354 2,295 digits created 2026-08-08

Value

288056564541501464957716740408073992520871759644728246937332299796926527122624901857825196371556305833398724696126953722318509891373099746866394773198470515056171982277279289400850452161537171685050487577025756337700952366577837557394712206177481961077674428561397270298190092428977892477719083467013804097210200395362315951091515105195589446549161754759626388653910367856895964205328626469765472670354077022089735830605541024271628718724410775071350198549449206583968940919557561626774422041301888043661370660701179336056391937567330238152046195498533057515578174311528527280977433261635679627447706795194518438601048011315083335605440780947134425699743161057077858324082877523452142207770900074986426412893723170684016777343895291545965630280630238305972708650127201927068279963755433927661370225034877199668814400511156641777066442887064272667928508538761817871798894719004835460114599696402057371217867273840538838097235760292715317300663229186635888377940928533469406282471804889883399091168562617954623255845954523364331538905825146415243932104536816760051414665244651740349311578379877659507939918082009490972801385166760900651699783278037284023116598181675741120133065154431871930414066688311839618725465926475974742400250426343246274058487504060418982060742335199367695538011814718252367314637381198731604840950640111031966144647364984023847403192501399627943919121113540235538873117658057811032936326777150518838361190131819035620467259711331545852188654561987101401383171741550180343398899127713131776042475497688962557752237921759984547229545761980180126665250407966891851562154538841859831518930106177260706611892014339435887372473916016684126366525019680698188318337622475847870677762513064557503000901174197168664416886979006836780700637127788703163937376783612207979717146785460561030199179514016162692389271330711529168466506480619369325036268319372499100592356270307224163244508118788824133790304465252217684102673945453439950829468320587213120227627775594187855010068208113179563895028875252562093760184452286523568712577473512681256197392286283714055792448868589911239440987119380575391423171713410037656243065610628525469755094546121641225017390878679656378634099771836404667957623645012225883770645973983974354729488692999119759912592369147070532515144650754930269996198193
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 2,423-digit prime (186 intermediate primes).

Certified number2,423-digit prime
Certificatedownload
Certificate chainshow step 11 of 186

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055621354 --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":1100000009055621354},"decimal":true,"detail":2}}'