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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 #1100000009019702039 1,071 digits created 2026-07-30

Value

247827869781394935963274441331718587339397756461028216526642939376286226764316969475192720027684157149777549744439729405216878140659974063272759971846771023369241978525582610207124816975378548945258569517737484074635070628282117029452957281003222564596955507526291116528145406500187408342995489616887406095558241200681754362167086602237894290796567504459025516947002047385218946921645202166190140008568685431111644278720116182727721589796784023939343644117372393437321082534635826257038009205189436670777709265232989294722298529513518679975044912485818113985233709578287900356823063846228553127903206950453744719089743447893438916788787545160895212281255164391090004931101468002473327332038626503585377639652970366641882735070591769968109088394886816626829299562927859473349809671215132377622669408052717704810732051048928828772772538558543533739776694521339916070682859076955573594015581115718646365510040067794552079513709529498108532164863580930320080867258816365110061955526046098691354687995299694245723015323031957647302559275541417358584538146137357934419937557737
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 6 of the certificate chain of a 1,113-digit prime (93 intermediate primes).

Certified number1,113-digit prime
Certificatedownload
Certificate chainshow step 6 of 93

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009019702039 --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":1100000009019702039},"decimal":true,"detail":2}}'