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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 #1100000009117856137 2,560 digits created 2026-08-28

Value

1336799261424597569208649110368431510099868571562576104028373738403601433070786577774389566923523854266277889705067894363587510562943476947997197776705107243784832215743471287111809796028055986979829518864447965969099768213621541778376958133169878774364817480328567987611734378788530602036504436001240368753501537003487052611814421955064925269782289687443568025263614207186246579169382970437888235627951821998426557310074855477862204486770986540387934434502334305757469542441975293211785791902062491863322537846012229451471770473305425688394754717123319259081734069392172876964595427077070428057479474276759406704425476068646600429575284695131522570544654509969393559924463733649088628032775297347348255586406472529105227817658606775301352830278259489823279905503580021210475588203596438565079039921488870648409890216100139625050010207373362698369907323602993284729066897555900790802674274145464884405030469855919617486643117747853927016762101914476577900064239652747324743375079449770250973320127692416931103955572167635012214774059019556678432509695673106117895640190503722583650636704040999058937568970375573833040167881495114153981066393530998877746867451906159565187000519915446350512428408243962915894240887782731857228423998813196112331413326739306059003937203652306446751404981743781458789561046493495380972807737033911359866524453418369131780117296008455595591108132724152803153963343559369319279695814445979110405258912756203071367170575559856859719240586297897552603682944085119106788950253384343500188609900101633737693207883234691844076747783064203333991914192704812047498918555094636216201393878059267561403604438181286975200443536339490220968464909358334467154715097608845343193101868111594571704584358063835897858341542900106088507453938484002022870591302705316408715597905591864931651220729756710452162059199083456614424372222883914856594266864170869846409914069462838826194169873962797274334583398046737082054090417734085281047885904772959871834902059127390595641262326094308714383063201825325813077681831083370491109112501060196559260261700244816664338213914617574773834807157323588230596738570969253620050839452714558869594160190958393693919006997314023374877235829307124218031481942907998782190370354958156938716199469208877385457707055351466442057257681787670346901276071858214110152645444363298928478124602933547205073519263156922942858365032195489702912215993932428633465719536922830640526710672521924783300788276379215596180508778164889306074635115900041725667924730103778252930524175255890664170557548593334158241820855772854888413709
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 50 of the certificate chain of a 3,049-digit prime (315 intermediate primes).

Certified number3,049-digit prime
Certificatedownload
Certificate chainshow step 50 of 315

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009117856137 --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":1100000009117856137},"decimal":true,"detail":2}}'