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 #1100000009028337882 856 digits created 2026-07-31

Value

9559390188506087551705445353633778001268410392798063936757962348486660486199479496013117088094071442957160939205116573342812233824397314471300344602708652557574705437394123336790394277419447445927056448488273731119412425351689551969086289375662217356809907407505225994747594211555496424061698764014106324050373689725953671604303856688011558769615530001299418917963036338803955058598996873231008983228179756682183631218122706135283174048947539329791117584800200515671812819964366494956576375891402109016322035807062990235324195775061343024463974164889457887497305952665308031627593363047564772052588356811197187534202200738846151252923959913040728982701741510787511562195075165813968179057645127370247022398842994979339871637721030417718523893044995231602873423021537084796056289685399688215830802023361680893899188428181447451110152527028543483374251094153
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 30 of the certificate chain of a 1,203-digit prime (96 intermediate primes).

Certified number1,203-digit prime
Certificatedownload
Certificate chainshow step 30 of 96

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028337882 --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":1100000009028337882},"decimal":true,"detail":2}}'