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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 #1100000009091155265 1,233 digits created 2026-08-17

Value

768486046765691393961882443610926111137109714171007306816331225536923098325651993428412237729146737282346640300915112924633062637170086516947360672124909550431885963535647720058137517023667746161662877603937679830339386422204931759869546538269377782503263043670949584716545130776153450309963451361851001571709867541678824538747569651303895035101585284827865078673840398937502157691851978087504185973710458651655067518026239065104455859798831865355390207281886105036177498311893407245405622622776791871660980390661734582657892799385089982925779387078951764663097957980065510322505008276206698014964951701085855522753939554475710701911169195706163887144170933105823838768318982447883544127899612255978130268280060293507472921092829006969628218714540659790808714642453603463681922915337797806605574142814074856812893124972325928125412026134573789474473950108932899503541854336336373223627653362323179724407696836792533934152414244392068998354342507606091413182116816386355598526691749756639008728203862078834141260422050552987040358189845883274619229599307956937874239824710061247210781513076353508231494344886330258760218207649461515337997068773703053065012255564698596786395681571221812925786442488009864871622266228152206667661977141
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 70 of the certificate chain of a 2,086-digit prime (166 intermediate primes).

Certified number2,086-digit prime
Certificatedownload
Certificate chainshow step 70 of 166

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091155265 --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":1100000009091155265},"decimal":true,"detail":2}}'