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 #1100000009019702167 815 digits created 2026-07-30

Value

42470709344071832154881719037174551611385242080207407516327637244886506501272947601936352416014918965394445921261707636285746565723487580742684159322208912492388085655009019490832805575321443909920772856847941214472224001590420145998658155944412771475207988337121912934051968329162023067373558058855523920922365577241916471018488532382851763855707955701616161474030630132699718550672821255045566612726061750028184334911441484060114113729360341201573757370916888735536137377088860678791924568490176426448224426796771709361913120683869595990742656090183867189978021687736818287293306739539918770807497641909420900687947338641887418336091590935179077870315616314280045273790227772407637272930659178632254379476683634779557243946862539084513401414547255337653635967267077851085539172708127640638981294289381991501161899
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 1,113-digit prime (93 intermediate primes).

Certified number1,113-digit prime
Certificatedownload
Certificate chainshow step 28 of 93

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009019702167 --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":1100000009019702167},"decimal":true,"detail":2}}'