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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 #1100000008676272053 1,141 digits created 2026-03-10

Value

1663268183771246293647228577938065730108068356085365636924262525109774704084979092027543797453027179143548839138056525147083602896860186275744765292163223769058576163783521703400034105863548038593984503736916801562557667225614388118657516058730722784440036357921156534104655415191531826681622656922053033057805029471945348714410836840147964022280513934659247067214679871347633106323589829177546470683581953160877230651796421133759583012892523967800108291289883426980706299851555395200157931795938010926093267672845863319897045793398121883481323195005403285101829105283003108813408423367386701265528037683215495417358716875372373203415186099748643664100898614051611762963862336009054673816890128138658141906721749710220494824028645602723384369219916991788962009446573342529637085328700498986231131324475316934661770055424924353017451922140933401910708505617538899593573343384282732068251315533700127671287633923520407242969029576340417061939935955109039611841312531495616815076972253694376975954362079563163420230390940194611830041104562420062951575510872505501141700368869436981810994574953844464576060376496585796031063050389329305612771713
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 142 of the certificate chain of a 2,915-digit prime (222 intermediate primes).

Certified number2,915-digit prime
Certificatedownload
Certificate chainshow step 142 of 222

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676272053 --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":1100000008676272053},"decimal":true,"detail":2}}'