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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 #1100000009080418420 1,262 digits created 2026-08-13

Value

11988496791011763327223506692669348703978006968544795003361780364669067116744605108817991815990720831790437618720219190830660724711108727328245480805403376450309956671013817106897672905524361134203393692329364891012166993760597943252240102227058624358221103790742351461385118247992170928086000485207087652765938503090804778566047579844181351594828093422036870212377341924157169427603097381451206161885773020902471394316603076008181311817560881852888334629491830379418652673688299953828706438474919096349465224144286453957345714329518310363129664875118247210578530717992998236132994279364708623605864552706198111628221547891129301610186555760269091679405249867892758386357034695476925291387510775654348812683528574539925766134163739471316057540234229239087845046994231977366195688636405816138987651504509121079458901833238329464171666562161685174042754798062985652833024063885040313363981389898054033419992537893633382625930071752070100263801592194024603434961845224082594430946541961619268424378947361282704179218778010882467209473140258908028660015803962436182342280092340968924767499761629752671881448913236556706473674537366505860324984183685960115531018471368678417607686404960471137102788840674118922081620479442173740794002991960939545850841016909058273353
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 1,872-digit prime (157 intermediate primes).

Certified number1,872-digit prime
Certificatedownload
Certificate chainshow step 54 of 157

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080418420 --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":1100000009080418420},"decimal":true,"detail":2}}'