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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 #1100000009054641811 1,320 digits created 2026-08-08

Value

656610771702400742535305490143498953898527675471883764143995823229893512396412830214396069542037029606992414683171292913565468617243353225584012495481980313611529833167409819035138295885708817705673329773940747296174006831675165717448764390525566021659485437237136721808151897452642612658290302842491667265865379835755840652346190946887628406330721970713089279226184698457267123735119206711602670436079429895174228006062334246403472560911886368588721615396977160809574794012127843230708029664049839529738655008108946214184370385968398845487260148087301918985068718695101617572024381890524070389848522280945274461144203961739658199835881791937319902735412081987592370369271830819033022063060164660870122866974078538145649479541386212604416625399004741741519967328253939467578895880579070059762269531110984886171567182954148827350871358094738243728124566139238723143296039495447732988616846049049615463967034575750656050766142482057542122504771369844729646019406878382854707382452478140279164763135708864019069474414958409599470144552067062170616788094719222814620272364144240698291026700159390922946257769354268071815687461965186751574401284856841115893971546425980918180384132352428957246667202478326974294860883578320517736894812398496716601307713571071920957391489227135666827250727316882728589848667268081108012583301
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 90 of the certificate chain of a 2,415-digit prime (186 intermediate primes).

Certified number2,415-digit prime
Certificatedownload
Certificate chainshow step 90 of 186

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054641811 --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":1100000009054641811},"decimal":true,"detail":2}}'