factordbrpc · fdb
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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 #1100000009023391925 867 digits created 2026-07-30

Value

997721472480148859390896145771519839517392755064830285373102908616849217169365881498892065431207050944531620249829213192004113284951703433241313160909289880131452473205078549759224004719513394636920440630068752549506639374202796739077429213227648614839150917422516806400094028041835660712665031576209072875839046139638592974817945853625677100096963859882531052129469029370141451809020730433448186571759738490751654272963307094388080440846838882772365475573465370096386533183433876918918137281110378635445489495294459426239378702541270200652322859863995991374894751090554427845788102345231052561215468900961770705013350212559107138159531563098997316143292350022107062711923783752762280472355676351349797083245248117408549547980187339027625155647079271920810916216737780514084775849422948542802101110002055860342814497366174250621697100404773070107863677718677552237991
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 1,165-digit prime (97 intermediate primes).

Certified number1,165-digit prime
Certificatedownload
Certificate chainshow step 27 of 97

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009023391925 --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":1100000009023391925},"decimal":true,"detail":2}}'