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 #1100000009018405809 648 digits created 2026-07-29

Value

185116149533376672793531762261880131338989215699645214327301500504937243660451800341457078378791890561831090898974613823681009833799161319469069645770154522973759421516983799536099541478981614822114134877069044550436416697481516395049723149518088004550624664410923807388655275085445673340193932049303163530602447255657251045795800558181682809544196441900014620774702965107969792061669989126836628154055908804213539300195989920397814353254175990960608876843425464787363858087431445976925934178474348508979859467829333781574691342289895818371028767384402422533225306847115101661733466672442966539566668367162109930556565340798058593262758518707065909
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 1,044-digit prime (64 intermediate primes).

Certified number1,044-digit prime
Certificatedownload
Certificate chainshow step 27 of 64

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018405809 --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":1100000009018405809},"decimal":true,"detail":2}}'