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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 #1100000009105165556 2,059 digits created 2026-08-24

Value

1153124367100828387132373503382297256957211335011849340557164589835993846585002695736517096116276414419772669002249054144544567877920024601041291663122131556814288132798419846852044388345070857893571912374242634478856302798884673375811340147612339072043274039411018469348066877232173391489098723794376149532945217558646702070507264609860311181797991703003105957567682923265557142850747944722141536972439690252136512228635641300064314427738180707965469858307503856320979450901600273424993700625613898146146658760969868218029277554261139443396452217474642099746004883085875152014740755390201764178048172006725315566778327685059371918282234346930343741634240433434345474458135129639099875656086276829574145031135739551925639214447553123512297505877272293053960671496597130376426690846268913717525607290182510060202947796272798105553299666324052164702169705465604914027637479419788722013747761941942130983736325398481452455632325625762053499945140828759030126483060824359079593025308189379462508632413549540556202143603569843603872345191607380466878992188259873158369974673299043187430500728469211907687183651904045383951296557871940131653495154713336725332224994978538551054508643219974070798940805243895508266167745248411964507346909562684092390061872312534159370904183779295035444646870546192625187732726759518131523249784131629800988835124353330246192101046442806122373452480343163395088633399340289114101732006205832526264769304821017678052203547854573542435878546195070788574566448860051040305175856897251214986702404958855552702749082809114945560638703281177876606560291168286366893671973154876696975340596978580363101802533492998762468577024840990217646098839959223249700735702975505203279520556423723639064450040638028983511778612409944656560409498498677211365140950587729605852689349827259706832778001697887550416889031220383413463265764205308976070148015970017587423534639593599930942681839653054777579503411778833086856932426978427732424075461778758966310714486289895999769093673756501708588671467717124449347959751386832211843902989010799469496181179
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 64 of the certificate chain of a 2,991-digit prime (198 intermediate primes).

Certified number2,991-digit prime
Certificatedownload
Certificate chainshow step 64 of 198

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009105165556 --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":1100000009105165556},"decimal":true,"detail":2}}'