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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 #1100000009058888369 2,046 digits created 2026-08-09

Value

780378188350924655270719238997428085288040774376263262359861675646607410381922394469211723255329419795201920026960216026648558440619453759248535246534342687009743241686927483087761301843859668502105396869356600512028222431796001220682867393464419943880612967534289028430344137823612378829265549835622782107976714171593183551006520797293375104489623603450724573079060765659377601081800112984279353620619905342442561420377882189920446389733311739319179547715951458068720983899960773046751834256991429729928022886462077934732476991000630735833318878429728072422333509922708006583656638801485743810369459526261596957891116160446890059679246894997130339898503039076935975509374697529993816726255471480741113012552701745083445107544007537914018801198907409439104148280092902748748234971018093597188276129824964449112693924051315195083984752532110744014147161688257639716979269325582604815013992352298554420317808381342935056565775290129152334382469111752666322559568618642894579862244267810837623626984808182018639631515092728860257575662923040566225242943956258101998750398523541523348545771581317089839192029133072080902119169574354717396027199736555066938011431428295822629307799664683075731993798625493361696922764820938519729941814747509779056490777255801236942858162501596472517330292267517598340076967768305459873612397474711163039033184107813161211307515424360884757896264676950713680613933152355075240392061940717902796020454667774004077876805419935025937937431107650000977899425056842315782938648145343306924946364662087719622175631234390310199888071417158565120030527103210011135230656515631721049992313027340123167262827723179800689320762295432006089654328229946253900088268861862646650928835886178841806443497956064525498455460792067005603227287359117337027760003809734035933758302697946344194082233891799063568421547687673787476664322578175650571416929945049452605927043380437156821234954320395646232991017275436609872310178035865323967803328576469561969398639133213903213167061020483758311942597291903577297928472286174633786567695504319
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 18 of the certificate chain of a 2,260-digit prime (174 intermediate primes).

Certified number2,260-digit prime
Certificatedownload
Certificate chainshow step 18 of 174

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058888369 --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":1100000009058888369},"decimal":true,"detail":2}}'