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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 #1100000009056642464 2,087 digits created 2026-08-08

Value

23951419838286129529884429485038762090666404957370195418072532499919022085553784804919623567588670699236560095516084588108812441111105988116670739224703958458394936964357825740129671105635498700999780783801790305419947811621305291907473650079919709686344930448622163612258806441914226148590339173685612498552679081588522511502975229273523048103188621292627627398613456064848954414844660511998219809210260989401169874793842014938434018755379978282955375751998872398988371475312481358971275590651010785579809413595940536464685938880640191854683286583744904043461049301668791780544331786229035637202839252360320556198452168640331852270733843540868457244638170928854735314892861221876066326551709667030964422262291715071576465821854297483955256052381762272088413417748688575692531940222999597478522807147345515186983855652546249685167388567778478813456356659609029594806324362959923319319481952526269788718266906528934683260147255189917356814019063575626030245204969096023471983173305855396525754741626585543925263384173762675883635533463517067540968396213499671718566650411994486801094532012085224719904453715681858784837434117819057667599979197091029311552007359656447289906380915844490378304145010078674439333465404070575198193155182247036565188110440861411648398345800130770685644738445799526690103535145197987746207599630041696042171376960613508503048710490676638133469787114448846658602842740349839738769407996269119533698680497175786637035039288613574139334932332344017505259549495093104997343832540923777085180874182794198854087652292609127314596597485572804684061564733565154565290736953813555094826857305485375518128401253261871400023434236815284004346131237487039867061244810315595643531777161909567881715580800216410934322557881765666139124696140236645045553199681267029040284252334867077874823622502359989487556519068906570272668778026766477235801014469203581812762486937264490920416815489660907942783549665909877334398097446924934074844785565852068910794626285280503706734516352308796822605774714557080354643044504633370058918996588062068023498741443662061117451984358749223229
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 38 of the certificate chain of a 2,536-digit prime (201 intermediate primes).

Certified number2,536-digit prime
Certificatedownload
Certificate chainshow step 38 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009056642464 --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":1100000009056642464},"decimal":true,"detail":2}}'