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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 #1100000009065129636 1,219 digits created 2026-08-09

Value

2581257474294049154341048534281116616077575778532456193812398499803372670899283165028414278595019156609617057372897124864519889599668308763005361198515139243755160850759452000719847372022277116434541075278043186156080893062807547267435994638612424976108878822185056359055943066902454597329788300675295027075584052809828880640365605042710964886262102886465190555233293250177323667468423920390775228238666310866591958535576678411195482547985488135890241495378142526740001654236454398455751501835581607643251640736557670664991084728225809845243734697056498544044760011375753159168180281933590820558925123859345297533299661485444001324291145795682820774026713748051775923948060349661846238639299648764369910648679876504658115373821042444108930400956382532924370748303505567473165972256503007540734502215941024107938921613398142381663045727619921225080294894721926730410259825976384995687064079200993367525142030513758317908523831714195626168736288202908734031992749235563822479104178686227170060426809386008957261694607251919350072217335581519731026450385381333298269034388048317097550491034316441838020714546156139373621006227272554506960100747667027438816784022887772024513686238429310763622375444737393940610521887678573
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 2,485-digit prime (189 intermediate primes).

Certified number2,485-digit prime
Certificatedownload
Certificate chainshow step 99 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009065129636 --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":1100000009065129636},"decimal":true,"detail":2}}'