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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 #1100000009130219548 2,182 digits created 2026-09-02

Value

3889131791244136677940564249571412917458187122361853061884638504957533328114725196120819955082996035135113091897370943047926791952980393315605935491737048208036477465409076638117357985917943920561378633975533182247332854918483665759422615713039279118215596383977205659458181481445643368304330569575636029907610347489348343024303515156293593972859974669311678333928909029729870822288098482015158849574194931575807562923397094398109389449793773859018021811916367136009443564649078255020948564422021125597355032496260711506546839883077891994692658711295096008378277433792589666531064796076138940407414755380331504390937561225212117504595344170447575873586671436455664166371629239367195175934490173476488108429122585840280666702308587548224471701517629582037261523895997695307529019405337482008524221165062572700087159981591665741808696180310639677516881980248284411804633575135539059547048803511841197727216520638983698676086824033239001988127437211087969558724624314755179259960723914359556126960056942185090360089169997837260610490713967124441776835533709415892580810507901787776593188763425124212181921485001073049817202426494945886295681561203372631103530197367211661434446702554964785884947017855737513126072375907369843680921730436672563368909098182078897577201757310865895244915928175091378092366656005617459427899582224231871769521689888217559348171904138341574211192995085072474790736572658999262601668460788313335511040026419546617727410524899276999529447533788746678724167595540488367081590314325546607511269730761249460852315790083731314838335030589682142269623883308244161679025540301804220061436107772893519330844023684690021041695681180984727277168308447017161550885342084399372151690701209598588558735758789862842197081671642108906446955369218981883306954211923295079136544365607327299506759145916714190271279337467989656338788744052970671101388148274684211028391148552420567913307773311552218342051366272701471092589769925155595661070349970776514663320578192961242090388986153462357383207261980854973172817219543792890621407580937634624002796434439030898672601259577332612885428713412746436656910766872090457589707991397188271205596973260518624896863792182269844763739
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 92 of the certificate chain of a 3,156-digit prime (316 intermediate primes).

Certified number3,156-digit prime
Certificatedownload
Certificate chainshow step 92 of 316

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009130219548 --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":1100000009130219548},"decimal":true,"detail":2}}'