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 #1100000009040879891 649 digits created 2026-08-03

Value

3775189531992253820025239776652231109115731336393746151917600145862971250662052857211020515337060188826724168625832583890566074487224835635723668045251834362168728092187738660879929873755490907178533963479045447457790230240911258141578130611314658086464777512146546250053033165613893771591337302150389260527318601438192977642925539525911341057692926015925394598664949828250406929489424333754472898487067421326361938095278519619819642243520098449256769173933274245878352906180518678812594914486895259291391687294682822594315642378657769449595625162176572860420402899955974947498266984169799742595052303978534002967858004500718638937222169002350520039
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 1,285-digit prime (104 intermediate primes).

Certified number1,285-digit prime
Certificatedownload
Certificate chainshow step 54 of 104

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040879891 --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":1100000009040879891},"decimal":true,"detail":2}}'