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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 #1100000008801223569 2,881 digits created 2026-05-11

Value

1006199360041808410900077553487951904615655942845593089190619066731718568430669635076296446672081663324315151112884613638557265913450368937368896219177934937791443698479425571525633304647297071881085113377887797321830079977187494513299977290656359157453768741536297081933833219749229204097130087723087583171614037876848872415656433617005935418522884587126553275710028017183169957702339951638846105090828146014735249906579443868833977649887209765546527745172768047713755701474249522326716927044118326755452674032467168780511903303940207355143011683393341992857921148390922429785789130283867176230342003723130677431783030150837328535976322263848703683427674689765083236803976984676584996983891426824164803093570479118075620391370430778916684128576399606278184456511624380029489808239839831501412154771088080309299017356283332993620145202659958263235983626791506408108601849858046033917040231439409915606898237819938222816573947391044923314144491465156399265528256257866040803975297061976273486628406226704565651643637316322401600356887640983479340872732323157245035251135833395597440602089869111591334592591565581041033254814588345217047452900651844160947413097429156256934523129204493240540564983112973898750772429131606280910594165051612889716678033479129623142817968282068590427462615270793278599041568159459023447585325355855456803291398839501959635981577431346049874162415244786883469577719326370320500760055594774338840507001959646631498172827049118003518717650829326719407787319470078148148975510126589441091114238484778430365543082754962505334156841115381124259703113804666132430746971816995455333207099238303520521202792472435322421163312789118134270198912982061924899029134875914667975684018240145092300513734573500773708398599831247672636338919319705361595979251825896871277484481127035298118323469252576225742225066537118473797226453027989534104375732418631423112603411172437631269811166933306905813931538778556496927004222060611615510995134433135274539645238528194562653394867832350257231536219510040462774423262576988654306026366666982318943305058930930277316772851729841388453638475532513579817251493881155846457745615785574206140117363465411896246503793415887722893386512722490694872446536265286638448925826798564379050566532691629576758689946030913893266304846977294272833803865220882788654983291853431871979778715021782953857986542818463656317300510310932809365273733242074646174818756417048384753647352762969727104731954685019511691378074031319792726264196996839389256621952698374722454874261344408115896577308630649464544359711293434501470862731633041563330255292500370924981684318860701096432446563607203815381733630816580907200883561704871818447122652168621560999399093072386586964376402218763573441473493870992877923441610061046245641824129324062603364785473488080953082123039979519899510133500169643301954227664140095316220534018849126424569678962462270924817
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 81 of the certificate chain of a 4,069-digit prime (253 intermediate primes).

Certified number4,069-digit prime
Certificatedownload
Certificate chainshow step 81 of 253

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008801223569 --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":1100000008801223569},"decimal":true,"detail":2}}'