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 #1100000009079887888 1,181 digits created 2026-08-12

Value

15916550155218114276346179843452118511755660792491754479409991498542576987988010593454496618515535215051320791553213184204286055311864229873870005552188985960858561551815946784025794781232467330229234810379204291600889809134050476298564600211234985664378805921595001698234645126294188547170474423288779838687029033887695224570711448041067584066124915825978624273300504683314252931696157645446313374304572941298749028621059315969684089613278285804893518969919823965729107576169406897254441131991503729203963655460117439240695596817347121127046211219079012443089038612171917817504439556197846136114522996325119963886918224403259515271029195675846421792868492423554439584133715621635146326937844728411995638148799449059181683673428368278693501521357026885190457813540464193376853241768876490807229578216490861109081921483655848353260345872194781129233117214442283005883177849910140424048176824727124607928226987076428715789286027839211325163318181483946591324341419634918542807118869102949693770472246033563334518263394299815200265648529438378397547434349498742313185784245667792339641115154696506169555280972288306156168354982935736594269185399242655429729184324488030262064583486693
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 1,859-digit prime (140 intermediate primes).

Certified number1,859-digit prime
Certificatedownload
Certificate chainshow step 54 of 140

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079887888 --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":1100000009079887888},"decimal":true,"detail":2}}'