factordbrpc · fdb
Sign in
>
?

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 #1100000009040879953 560 digits created 2026-08-03

Value

19817795219725296438304651506936531275087349462138415964591355529316830668564206939437440456229324336316442952313478364324756206752645652765483960969635714768571327058606391411200465123924508916654321600927737250003783998735740648891489871435481354366378365741476066184467009638474874312102222927542912397939210490042329562852809725701363693119156075566570987527579530984724248762801916641275141334685285305857145296859454341701395701838618369334502353835949282055947172621616838409146697058469536618569169286151520055545250858745415212989218701609902836355693
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 1,285-digit prime (104 intermediate primes).

Certified number1,285-digit prime
Certificatedownload
Certificate chainshow step 63 of 104

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040879953 --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":1100000009040879953},"decimal":true,"detail":2}}'