factordbrpc · fdb
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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 #1100000009079983977 1,062 digits created 2026-08-12

Value

261878927439091828121053309631700166607844451942237618627764192471753946790911057935956917085050181697870334953010642955599307026277240782243424728920073566052841515870363390152430089933217836185628230315413766942337345273419177850433181979668321280153913882540765368792547396440363416475112429954201466885691377049213195563643145787368637789867158014108425211159741755760758138936878858964301561534632905573662295464918778205169609884245549707509543714314357276374978570928574878873028269391914880635972759380128014267822702455793754328728277654744288179461354092428765686785307426167626301402675341007525047419620476388662491179920659223032013789905915064158272139389271509601989345343811520735013605155128501588748498586012102646798342657220220716822232251840034538311877307688607385650812846354777003277903984833329288487567917255995007010949688076838237375840603694662606610142404512514262657343937655598912481068574832829081683377213850325955601556403460987590362237581307334526397469914982236065087361133866049589490589926870705514092430756598474313757443
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 66 of the certificate chain of a 1,912-digit prime (150 intermediate primes).

Certified number1,912-digit prime
Certificatedownload
Certificate chainshow step 66 of 150

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079983977 --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":1100000009079983977},"decimal":true,"detail":2}}'