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 #1100000009061477821 944 digits created 2026-08-09

Value

90313565582247008444115141823921451018507078710999980933794130216958531253079612172180884344991143204004830349973514730338767363086038854416366659940099705137525276680615665945889963730955358744445616705887529640942430284147500751575060379061286940738643247929321934624842911347718382231647386618133846632013357340433727418425472710946529598238407970898682442938586780928721680099946819043655969643586248889779424593519193374685635562820109938459968498901826336309214413471000793033609027117340512342165790569169763596965302852852870456455316336146191314126970699535713823411421688464251217439738645884318721150894180313131628175312472608553137994952984112001715961001135701880625482326837063918832173324888546195808481620559652225218519387057476025993625300719183721281719733804780282442788495000496432122932518888395452365163417053119778248049898081419403880381351315844417803843662215458805849974406674997424635345809736914747549228812545187
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 65 of the certificate chain of a 1,686-digit prime (136 intermediate primes).

Certified number1,686-digit prime
Certificatedownload
Certificate chainshow step 65 of 136

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009061477821 --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":1100000009061477821},"decimal":true,"detail":2}}'