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 #1100000009082678858 1,017 digits created 2026-08-14

Value

289921710139765645373210227374480557068172136752592078251339088670504915838658371621328115804794386641521271041416469736827284848944501658380063919176362056393554971847576314340778746952928270308454905155072435839296340128729718504532935142907812306928428359687458202882473204449180231556259216118534449190768274105293078900820537647428167552697501887364506912107491613470684332129475703163269822795423152697146114112895482737207436192457687460565862350467085689381717561976140970064033162949863269664548345224692197373403019369339065593575430449315699319072743511763174788901841529440990776886902648782128975477062466420845453099039428380240086711993999822555190188117562732241386745732426886294629939397153792259997853700004748592101727523516826067769785149921925790483771986613901876740746779807776467058061891854542025590917622210244795956314910794576098612991113885554283413537605247811634667506132313500213984139262642912336059247263226849250278192950510186452044874595817445623537908668743807201680039153137621
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 69 of the certificate chain of a 1,880-digit prime (143 intermediate primes).

Certified number1,880-digit prime
Certificatedownload
Certificate chainshow step 69 of 143

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009082678858 --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":1100000009082678858},"decimal":true,"detail":2}}'