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 #1100000009083989111 1,221 digits created 2026-08-14

Value

395140999790969125650995078214535131536543334715162759653171323748592925528671877643053939918156792182677330195118982235118802127951185335092225337641013518028586131534745446823107879890050385058940603489449742284715731292581050200240370608778847804814424987207082794042074458634411742929381028121347990747279176179836132553831682956030867703648577617127753750344330255512646527644714342354703877180489917591172832070607062068841598435862474696143120547618123280844004826238225401820817981824896613408319344970909138454026307038698295515242450785463075980989402511827393138988500802805073200092538044198029165783633420675609410348095652659722619026093235532174273643790590937386426718011549291350911135062250282754001132460729537413796623860997365986698266999198201282237809543196867748918815645060097758677293415948112592496254850057822198209699664637547302933146750694677153795268190566697919518579438535055884498029787729639220726925443221612529757175867632770545346706211504439896541902760995276541990526486972066924437553106728755603892904257370700433267224455357688149096905595253667655959821030340854851797897385780059673935488007157264665864262016159422190754234517325808154209670093378378187046942377640012634557
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 55 of the certificate chain of a 1,932-digit prime (150 intermediate primes).

Certified number1,932-digit prime
Certificatedownload
Certificate chainshow step 55 of 150

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009083989111 --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":1100000009083989111},"decimal":true,"detail":2}}'