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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 #1100000009078253575 1,219 digits created 2026-08-12

Value

1009993999687747678767777935273348029840988311621600724883991431398376858428680035895779824150125411396911699266700910579546960582856284602038783142447524948639520771822204073452991853203557127079915199067020843428046788896749812967256219882243600719964475508256653924486279633512429880941801191005544127043271962383516477920738408509703514132460520039280259629726606023122853582805428703390060585905727065989883040080725493985963248914531408304398920286173909444056145519986464630564734136238311561200086527732509555788830720703424432809151153854306205417917342579593183228988680894068747264949711460003558173940107203452303874861017917787187356209804112868253167132019763889662279805443336282049418821630848373660449039648199980236024698703046817303080507959983266753853460692747065548869022816510493733039817606418115982339063339018911922867304288939314965390554107801450836155901135152884215313653506017827587294002089499980023835066905641444163472932424686433421693841368792459141190921986768301238971023756773988781426785976786121102381070350804833189043562590047674841921005066593278654262913016593197794208838015062416031617301582280854655831622633623826970961975668367494959277313221454416923235959124731751581
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 79 of the certificate chain of a 2,147-digit prime (168 intermediate primes).

Certified number2,147-digit prime
Certificatedownload
Certificate chainshow step 79 of 168

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078253575 --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":1100000009078253575},"decimal":true,"detail":2}}'