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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 #1100000004923411241 1,706 digits created 2023-10-25

Value

20718393850080363108923290950463311149766372802637333964488416354079442231906939151970437187611068089430408116363183891715650425796399480564457666960477506374033428780224916148428109548997380609496668017434440101877745483876366191247599224436503687656107143940361159353375991508491737282332666654714049592262396517178743095639144807967636054977189335930998259480052130486154002643247252001577470929413401218147727860811241736655227575544091764748214595491985201557246250596295917818374339433754769175778351274270463468573371371857639279245136501798413743010418424214470136217293485708359309617722483608058412543030043775743596614929424161129634517138733331731949942425084897853094142710605216381025452407923040157619838647173456998048832170395070687852839701171666757377905134747908353130285106317404355724343989135728114665588008535203762400953703864134201992229336792534590028708787339757567530402565023739429995741720379295082007913623246947205793424167112912294856571457678290295996372754208480059758518424950285918546279060216890402598128043090879137261604974783630403548566137123364736890450906992878020417448439675369878889472199209406694938943863229639659070193249641283899539309053484674597414938342001926699523367283139012424721329159546654523365192968161264534443278650648901525830161041264614074425733023484357553272127819115267670560359507713772206574629756785959896909875053556118062063953021530313397336473130630643493634650425364758334026343320115145306383717797619409467654435747886241511698551664538595226983561855870589605884812436794201381588311870293013320080030560639159004274071064524509081033110819632065511316167481365201228422921070725557121897775960103299872861925032717059558741
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 1,906-digit prime (253 intermediate primes).

Certified number1,906-digit prime
Certificatedownload
Certificate chainshow step 25 of 253

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004923411241 --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":1100000004923411241},"decimal":true,"detail":2}}'