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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 #1100000008675223813 2,313 digits created 2026-03-09

Value

260898158003212632477916811082475271221611972772782532009920783977645215443740520528075331946143582381578552477670167691029051542680507845443542858791458860629798867669642440106197702269779463469187824639046656522824154530383343849920981229600251322819173888025014334257183849625765651950557459663269889582379622781699576293541966516956214294639391396601003609613928625251562602536325623881458679581744590020244430763432237897888103159521074278938299363811724407218345232713147947438436188330233421573059303599712515030964437550760017194966671432459463296504843231647725595478738143811984637458083523441628344529330632123867739523605941722423419434608141685909237899897297975966947624237754200777656275423035016284227005047083548573499820720349744083713428415243117466798880313360479877477106610033803470286229070536206621585471286791601108650544749682499478949972650329920681525290631151526882266805212960880885051448342153756180702773495498889385427939581750952365891701118959435570467972258834349872363561681598953019060559918667315387960713053197101083572551447188478717038338417801879431434170120837178417840497995577420228813941049685378143323975825884093305825762992779908674755169912270185310069663797090770551864291633602667605844486969998006407344570010556644198459711143929701201298953121300039073692479678507081990073269677445797449322981892402300627462325736470622344005938007514563893721883289970930789314820293648380832738510840663407658317933267119975029207384114033884682004589001924406212722490334835088802219055795076363945280511546738258427628385331956094492692362731229893691586758439681391061391977805659053152852756352783070758045930722801545875535416409892303543046644586857506035798258944261621499428848121812145430588632765468269626916801969062853632360116554775436283222333182936272745850813286945705902886318294963102945971491830788799270798366664962449149437137785672223173891248988320852517545895732347737724033910918050263790424804103540891748201972284387828256272936211403030443323462020198414765752580729086448901342002997937666507108174155606438881662819538345467127340256889902170950603788402817794767303242401518917467641547133253575584657427118157723765775078263559638018661459854478319353929049927711028089037429402067931402072377942941698039323638996868801150828884182114327
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 38 of the certificate chain of a 2,805-digit prime (214 intermediate primes).

Certified number2,805-digit prime
Certificatedownload
Certificate chainshow step 38 of 214

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008675223813 --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":1100000008675223813},"decimal":true,"detail":2}}'