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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 #1100000009057962937 2,518 digits created 2026-08-08

Value

7949540499251596293967423749808019415800377205573147705984882671217336919088279739269437985358902282377477415478744718665620724808144284401931564077397681006774705006756991203997558632552877673409995018304563434732294872592031809211018692965385894213888304806443313955675331368896806605149788846916257290431107224562433327377935875579675905010948229473034250135410002806780209317458997142497616764457819267282433391118103375794004815275029608543789610620960069424226852751036838674943702792264332664203209415071846727516360106640602443749077659769341227513789866672232921068172941914239358167404735254234877370839909017884773250178208965790491635024603637871098936907712808261303721490965977310491594492679649627084724650162740151889892376932230405420789696236909799781582155863526209511416169674183641595510259803165367262246828785666764819574045887080747618643335793282512445024900855190439182302549616217399183705609751890704265889820410931749239206345875050222650215616368699520560187576068952886473364731435122556168908884130473610199675140725076012682247887470153218047580597673657279064429944871363481845668167222185727908452968937365587441073308526778040850355523564306606674161899021904444910451892873356403064871817361237808492612381421777810598186142654974899378500490657444882059873901717149957111277997385867541365241857942600486200500172176093313084497115626924089711401091365448676119277446712490491860786952245098272195212752934958822511880016114164834893568955486729318235615426827953990238612855061577184454611710662948883674620532224627380952161105939320833043922676408417483154877814185886390974789262148364497902041867745458343235424095593281902114291218460366594344672025967502166620854387354478642086685551059736575755431637082631641860845753851668736894353522720582112246889096625728688622212372250441833797653015398061102353930876834232994144663101894223433375759839709089191984792689552798988047351281530825430304571070835063561397586233893338130319500132958840020997881614365817517150342262540469784923322036558471725916548559926172674058997216464591786498529738852302638514822186960364478198117125347583533675851027182719907332314949274902623659718667003526834015237978984718278348196052222014829070358563190265650131905333084567966683635818287872231082727071370168833238415595184959380765180610420378696058086085484451524567794626744176265085548602550538794317129592823083606083156676731819966020488314821941465769944731999434257172318368596598593866494175595197242973314619263950163111951
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 2,600-digit prime (197 intermediate primes).

Certified number2,600-digit prime
Certificatedownload
Certificate chainshow step 9 of 197

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057962937 --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":1100000009057962937},"decimal":true,"detail":2}}'