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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 #1100000009079730215 1,230 digits created 2026-08-12

Value

165157267485765787429097572118683974654573340330320747493882062647717303201457487255003291340082360226440275722466575916551718535922151107975346606943025231962115310098540049160638791849384133687096178913428536327970243564213779180378940247728500096602126197647877331214870097191568454910032721689086793973939605427692499661474952802534957468296220745470701986472863434477692296411740320915240846705649089942436314991843015359032983837441325150561352920302400022997214195772484346717197551286780052852197925164992562579045560153114465905154729415585568298394954898037135094478240937667251046236095690798163372488227769682495962141502770775637870880218729509798864407027295378736084784303818159016307496376439378922724116206993032678785113847304013976319354787390899985461669955146362298366117820166074135645381582444360858178196640246194638976867427342515636735017469654209622107889729100865291084675282484223695182886181810511577866099435018333695907253792986765505345282850476915744665090959348003294235600962722572603676588449109138068255724131663435190686309407749671715533829740303135307052189577105137010827193092588032798538831779610434040423987536257062373787566589392281554352788434124420029103557398255152024394596944591
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 52 of the certificate chain of a 1,853-digit prime (137 intermediate primes).

Certified number1,853-digit prime
Certificatedownload
Certificate chainshow step 52 of 137

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079730215 --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":1100000009079730215},"decimal":true,"detail":2}}'