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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 #1100000009053987838 1,682 digits created 2026-08-07

Value

41053728362824954832593024354940837904293523154761081412277345639831916972496283748282096807890999222361483962251788217327882064468939126929437940313763649394064075118776372113960553416138582640954325801850928639792438560426521913695181550230070764832788948873168704284250198883140038571025343805617305924838554875820308696900421819401352886184590115833267542816642131343357443214410072725118977978613338968823011796926473747338025703877354634589279614294882563531534398062123970841735739101238018526380772949736748372848512828838316056004940094392298060712873497735716334998829755069888650459499852620602525210071587645748373825429520505341074037454278034485160355443679534008813120030635347064563853550797030514017377979620672827794469388322798114695800717491472716401558026978992766514374679582266409723996578933072033524824001065669678592873471196774764577164690017803355806855275089755376705331160254280879927675566546450274426937689762229501967135278925038781134723702606395606333131609879753519245705831228917762363193164146363833034234837497173634903705257246382752110594136049170902194181811036950818597798995606317417792287166167711543104524266338985392420273336656429817654901217718412791248915597266649369379455046546284996856392543355180441814273677224719681358170023343057581949559573842803021998771772940643067724249461841906958100465709049944715565386576660688117833467099491051822085558930865936155400242115281138533179385114173334017866507968098542638430177555835178080798518120010459985071357568796287937673025592317670570742233163413587351796850589739786867332212093577391748163378533016614569540877758194598481754523627627180070302258702993939652959809634638883
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 88 of the certificate chain of a 2,857-digit prime (212 intermediate primes).

Certified number2,857-digit prime
Certificatedownload
Certificate chainshow step 88 of 212

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053987838 --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":1100000009053987838},"decimal":true,"detail":2}}'