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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 #1100000009054177116 2,583 digits created 2026-08-07

Value

279209249496685511952848522673542152234946057593157769190703552427625214873166278785712218798961028822442525758945910076999111548785068322134257948179890170389714572067154867386186801525633375244679954946795000412120101905846413365641374077383441568588462335828344576822585659143211680386143514214871941863375351089628919949947876454794812066453483364976485878146306643919358564145546696755518430766181482534974687515662939074821604186855381792600145049015350755360047725010310748163384324173897091608534294210515488877520626316053027834701113391108374972190188159955378853438206325157589259543872509583578942995373694771428329898958197834943899562300405914854205189715599267237732375866153418181123742810780048893022099399240347915481245534354160581157749632840311590663184316679166606063195736321262891427388067650770345029140188759062348013422757472210388687463981446620083814340940072997790340332427321204823579371373649852685978327650674943227258830715952908110275300215917744210082991750354968506099213131172779538923403862899548463376694925347924182312737319888799297845508578754905189070801866219093943703920288943616119345904946659393972763715067770939903249439228584045177735699155773546742119852612686967037907896981082434129720929966745280411163811466715404292422025261261137211998170804494261525968724822100792296785976306390936792767666163358697711483332129375113103270322072105020582172354163715618289157829273690672851355989676166687481834419934086138650433132690644676891474113970196730061731878572760815107134685685953986768096341458774558352936554923226879146313908351543155930181949709982871943543250162026190698798809614924006116223081578578873682193016538471128230707940103605655323594363566137755330955428239652748898603176844642960759810414141795526410050046902556421844893119761241944895406243196827854593651419361968976059734564236551528219625668955644003888526019058885432187064728813385687214371988359318249443219302357945041039246381660621314017645092274760066291757596093124579274690211246706331510919715540087931339970310765772665436718930039563850203690474283230613595177421095658942838183658634202479979301903608977770168856658513561275139484829676047810407566396963346091402745576115708517824526408398716828010501385210351849145929871104956822153695083109041406606742853001611639209863968824490756311552593123203245040122792292219839517977359212353846156906864294627663639166862853682496910423242318317778071342583850722737227957617177802066092723598203474141554434777472883076595446067327460045187319799455101667912148831145177204375705551064385391
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 22 of the certificate chain of a 2,858-digit prime (208 intermediate primes).

Certified number2,858-digit prime
Certificatedownload
Certificate chainshow step 22 of 208

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054177116 --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":1100000009054177116},"decimal":true,"detail":2}}'