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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 #1100000008677177804 1,220 digits created 2026-03-10

Value

53627212254748195666141250034906742117489718611580011189942143573980031295791055546363975713975515514437458037461596279656747882179745027632521628418152863311641515323579656242404237854017393363344918979697522030446843213258888543610938705703809846904320886583732168458494381455461134890348462661879992898603179104183483592924787732995315042436534352475032053997001339091988160312831655923156733593013705197274304053600806790888702938423003297686677327685356221570352141475906923644926351412590097683630079919220320176057568559122986941720119368006773848931298168686162404285036213610064246294639038153191448851243298284850100952321660608042507714883386407569274694383988984840968448156056401185857148747849410613553998160905928704633264914969775619960852372187367640847340223112603639173374570780115213205299072734977039343827542315940638804828731593673185778547216528477144821308994947887405867693561600643599474986194446623861790949489186991119229362288366893445763004866271779220679373678402820790141603749985915820449488218763938616983260704955017166372127006386065810478584620495007702703979423697480159272896254939328714345020063338245358757442035799407149583844097550320626810838711049250512411533555542220839429
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 43 of the certificate chain of a 1,642-digit prime (178 intermediate primes).

Certified number1,642-digit prime
Certificatedownload
Certificate chainshow step 43 of 178

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008677177804 --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":1100000008677177804},"decimal":true,"detail":2}}'