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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 #1100000009084007790 1,823 digits created 2026-08-14

Value

19580889857517945495756825455500533854548865031337994543661389444047868608373292731575219750948988173851096139332860569446719714250660085409379904713752941269326457290592715439979531849890140931104263643227423760402001313204459397057011047829551997012938228551066700892726872604078227877986978043090191826668118891220537126949590698885747826603600240169548611265918773050351664131985461233952352605881076741776518878903122859095327206443862048373742373544316334711115573464789309483930404319801954346352863869104815948364149483619423440337889098508139262963844549417051742886655469644114405004673101046179034524333411736027187425415565486610490900772921276826503116778019100784712322666573338706694188468139738001259241546287244695200954616890967621938222348443755910316114329600251375629256102863557484484179729470823016388879869594996533521915436845426905479858238235370503202800444447543802998482828570339443042754976492631733051027832065333253183788882668337432079895408850704581894451360635926309599759533208743458718829983983345492264441254510284755244014586391434960097094767756934549288755765762871146475610466920395814839972099677697484202299045054968006664449053751429502271340257525885561328081737276005185083174604105756654096065155524423223810013188627204299517217110621035506049622361490146266114414069998884246490964520882126671442180651280541845806054066321535613345182981922478648195850423719501722212417822501190215513820142837679945384677724320268900597220458862472211145310053996449571970931177943454634196666349697715349672827215987204019192683999506547655706829836647756682472693959307115713743332194636329747177820343712784749838113982999728398019191488279174479662411045947072234452148335473222355765735122566757221057718257890544686587886253429251978954393319613708627728872061461340488893224808571
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 1,940-digit prime (149 intermediate primes).

Certified number1,940-digit prime
Certificatedownload
Certificate chainshow step 11 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084007790 --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":1100000009084007790},"decimal":true,"detail":2}}'