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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 #1100000009131611775 2,646 digits created 2026-09-03

Value

397773824460363065134054711593962815333699286052212463099312483004319765620792924235065504889041761236117130032300380522476902599013869164333788780255622110474466684832335232457412559306730890632595741478700654449643152310243019611381402103661800753940004134418308856495159289695462587409096150757911889369650001379607940372814426048392097880857795449254754456083273636498114786392655963353927965228793376074419829485985857420382260292302826262465130168486630344162897586015990229967329954506600246183842770597762226080502139336024422795977086249018581874520346316894034687133802999833069192530372797232306674922022207903405050123004216335639714534263100502567233996867757842059448605576941264187168424885202955789072347330731127982920749774887752795295830877483066513892522407046143145632585892120727806170487921858912897193681380954285746885798799058648599091815514263421232344404017052580850702981123338606716572008854326004828065733797038054642104546515335991369304134221349766760066540974023949678455146639390533059176534183605288713827347614787470807007109318081899217004202704981794796916590803167475429242679098074445902814333412564272289825146776956050130192590839518247685958533248653924989613704873450818005749445906243435261114820567450375995220699837857654188555762503852566473541274989841970732138923056175866767530647778431892801834372291732166047456091300607398989504067093361135862778667726546207357604349483268625401296170153565757807245793091398728473453151307344230556374614411091503290045641412785317818982415934672464527264480304065929571538764273329157320421025116599654742237559024732951585514963580680354219753653036455135112154826781817668108976934892520787685669340992850405614199338205102464842221020111620336963721167759830026514647543408367978318094626695263348287863947341201174236644966307021815389995783034978015882447766783980589897633738685110954518971286633135983050840487990277012007840059520488966969570334005341862099130563652741388890471145199153510584887260209193312590261167586293369090631701839754910140012563303163834484251003875778261830432899625066590458495528640948355129727953081242947051849849192266959248611151571902683895902369758134018099628324790287610245076034576873728126423408384902017674333046076585446930474625350716669554691955827658744008902392556398644092300211288734446069422151296377531367113381486453852976191892413140777629061182710117973763830461972866785966393236110141041875756086392121538193809143121497372680911210820326966151335509086481666594306405636479180715619903779599179467930936795209293285529735487500288287540118692345037935839482371005174803765610315784193126098543
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 50 of the certificate chain of a 3,162-digit prime (313 intermediate primes).

Certified number3,162-digit prime
Certificatedownload
Certificate chainshow step 50 of 313

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009131611775 --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":1100000009131611775},"decimal":true,"detail":2}}'