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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 #1100000009068843185 1,494 digits created 2026-08-10

Value

202227861128909676454551925200362486756166215129282796962699920321818018388475414863153363484875044513233950593103586167122728009867879491964297720900862066279504483898519503471071119244490489579192804786415398521850552951871640308901436548801746655525851413731574999934337102425228846031164086464058862170689195493975305703862921308921675709392965845830722316037073558002932066197270534502183675602918570929670193567175501307965608910992504119761881419293216634417254910190861517363577523344379282842203344257854071612693227092465965596485734431288022041872551269625789994729563440606205153499184485130244782842289077417322231818599542595219029797659378939079737707936044213551299842429857289483566104280482944047427267946610435464191416038952817694124344853851093800580559824471325304770479117119157012844393920847959678663987515340320902871929816568715815089608888453847734404209103406862916600928919495970251119152650440934446671693044526641193872402449631604812300630949747775078320241499787801224953848916346689038088329474248720282675851048860399118028580326691931453895813294214819612131426104244186123931942245532100319523638061864966252729391408898247621897930044590703785842775208357126402851346989062264846530877715302334851301390004985428042274953385886256742279533794567670032672522204582364104816320295078512984004301992369444981928705112632964105747807877269545848721891435960741837519229057749179776784818758959866131969619427348433662099030372086329756583724633273923175161501
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 49 of the certificate chain of a 2,101-digit prime (163 intermediate primes).

Certified number2,101-digit prime
Certificatedownload
Certificate chainshow step 49 of 163

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009068843185 --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":1100000009068843185},"decimal":true,"detail":2}}'