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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 #1100000009072857018 1,839 digits created 2026-08-11

Value

104596635294480678366635385107862792572187920470210868513845926733596840065998924018356997821623228992919427900053519452557064248885656271720701167068078251222363439657314836682113507930820737124523044011108541131941201998576355253125750140389319759025555678259245729813740087321651772064394085778500065045503252462818916313875248576754843952978787641727812411522201192523638635606702838521747552617269984288510347521235319685446848720368483058766073394118108513676879109511384592651080496927837551816396065088092029849581817519811360651907678772768273014423307914156385041668870856694814835315029364598849258885859299277528414043070034199606337615521542990263156956570482754174275836440695264031771437887563321876968917412982035170003801819975739812599646239557475009685306411220262470106260528065239799971683561607563787179361180736028034567040050053440897264978257573043953698953297831855212633030901288905504936192737945242385113546400717187045782631588226366892464690532743139340356365856338148121714232923400888800121513425504559109199342342135158727981248620915402658739346332530575689106746169950034198180048422856970809827243744569849902286770871242586934995174729334910074644967640192091780922354044632360055877245770338756957162686275634446889886295025274636368701528803240135479081833880821082018128360908766776619934568988720186162139198244999124080865828256626245427845475292762161275360159635462739344333730557327861006737152825285291066428246515635328102196534115596693914464377146294174667942101522137240258161034457584635653933457576978510302012397577882250377643866987362269132319154073195823497040270073980665656405372052448187604996450982464078969877914553041496934430502880511479025995980701305893210582597786858073108724927543755638631953108801853228816787253619845111840727938519163093475086483438105818389944027831
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 2,006-digit prime (156 intermediate primes).

Certified number2,006-digit prime
Certificatedownload
Certificate chainshow step 13 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009072857018 --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":1100000009072857018},"decimal":true,"detail":2}}'