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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 #1100000009080661984 2,438 digits created 2026-08-13

Value

43537871939978301613241500325705637102328414668653711950801473143486527350511854073669066737866151434520585047023230464139485554469962888289056035377284077055528551587055012404457906638585388807527367361793841600956770494852511306321067536227526032751399713451566833906119746591773187001225427076606333728258331768043864610851749239397948690053368570851803454167969392482697625407710420900926183385868831412184232917050044985232869453382285357939457087815171158183320759727820340566096859721601447569399936256926940202475104923335481717995749851386164681858872667840046139459648083376443423055288446867325429307638737150657489289550166071669403199619470208745040074866268634070997239874874828751056106698544809694565160882019816493254521978828787364761488027121015271944801703725535485601438096088826480720316318609129232902223234700626508675681018475922909306015143478807775080187258092485111695492877262500602921630346396950639330086521564953765558486724237320658769592419567973617278242424744379075159778959848317350578625584959810976461405574349333727871627061019927322900950478758595321401479283316640803665522239742634424128947708382809539072191794044985801915425814797100223703013590225998704898865416165015977014235241252177518793996353666603717041465443437920878169323262319270933854475462073502027404409011583017505228240622757003670990414590189218501016858127096063441611661019888309806034428744646329452165181404869422839769124186593331342317810217783759358196424298558237735592547790310953117518145897807786660873159867973599004304555040840235256319250752106658960161998085253178496975286176510657663529157780202079747974297643174117027853939460183895522253596218246619574586777288160423195889084636883238005958429962454564759359315730216024728458351432973850105739066225799882483206247544813136577886803771883926212965449459058443728997095638770356725910674485827735117947863222164903618431756858909649994490146829608466868462318349671832256332045990881001497480255621731309278308198907534536257064846986144605419945508431410364554268437200759103643402164244339893711389280999224886849813055351200778603790804960443237591436872507376627104076022398795621560520105348010926460562369481014091334770329199291060556571449401315546766815525089235083040538454545552652297897289703133689614073412023753207565049114567913457412497297910994004610320438279168090345205145555410743809978800479161774661152919630224194402653780722577783
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 2,968-digit prime (203 intermediate primes).

Certified number2,968-digit prime
Certificatedownload
Certificate chainshow step 36 of 203

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080661984 --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":1100000009080661984},"decimal":true,"detail":2}}'