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 #1100000009053443587 2,367 digits created 2026-08-07

Value

643942606242832534816606181159406820435859373892004770089695142965383370917534076130352382400108909466060682534294489421173424552716506429891075668029326152269611613287276643311909474556707177501237028418983461242846366956438872654011534258164920523572949906343304411956492278512143450910466652712177343229512356379290705678225143669616603702231720606500539003919383477312502371405205338774017811861676258623563784595401195485279456472910706046049251856675388153719984411613560989670966105641547814687118725032679065981308691225219984248946290084390947284987786923653985135181551858023779676661639444073471551901656441471573580642942122831921692918792799615107159884807383745421375644086247620985863564277490924994142534328696551415174951226407883759790034077429235636747000736035890079579889222607448843089457364375874159330113945196023768679653572038129650584017496192181165096296042047824265033653722737428291582383800292749038377366661963777929720729361168076162631836160548537744449492341205645564622320595685655025703228386108281549875581037515066991866967068537460680958351568356530656648285485705427450167073891088435858943461810148289313454063674298666387536492654079859660495896927701214696133595518348542144310396218222346699424900034605265488813774570064468883919739127514176253588246358969529500405917912224873067434963838831257275825615233970977744091043829485319298328596659578334665794495669071585317437722651107109330876151384991529012982859277940321646393233252898720632162733624260590976706681333764637685725357385610136254807186145650885008589825157928666701802132013836876186232277697660934834458146417561271552839174191605899564358491923117898422548096983824973299418485369082625067411791568361655208353420738459001487063399472933158797967966182534894577299832051051185238042879631665684903116032171057297783995599685447717904916909122392045688385038134038668429944308219394858480274710016535034876915053753528393670240615448202282810963522459093995508272126944454408765364183032438074343950632780704830901841524583431190887389466439989511032125483837158884823887015198913516658191490185428043809206008145502573625085562890871669735442792898272388210656118603142939094071860291340965765655917330337172270504077119589676180442266524832653779932774835607553738639194922045641774266230137340856128691197340372153880775256102962145305463061996796051
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 40 of the certificate chain of a 2,853-digit prime (221 intermediate primes).

Certified number2,853-digit prime
Certificatedownload
Certificate chainshow step 40 of 221

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053443587 --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":1100000009053443587},"decimal":true,"detail":2}}'