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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 #1100000009052923987 1,088 digits created 2026-08-07

Value

18531475201869373969480612546947105898935746303233091520228186227356502461428376422977721355896864669595149717468804770659537217685071548868806246644368326675535939376880410536913141110286576989137133916699166796608123263242294208344009039354584497838470693616207896974875601075011000568600153253559802515731452447528527782191809722485085288503577830856948847631506179976387215637638553009523604093913579606589220167812484112464539042518979198368438486848529006760590174009806513841884853002853855628809938084248158902293644656788565256966496251391556212972752325577483708204834216500818301632402461178205064579946813746187723048677317003899327123941644791644821091033842254706823077742938020319185330300378997838693085325794585956591075468748939709398308767905477216891912488087646426648240967838680493125629781080786770689852874571058159643334167122195768959341704985496057138972226322364106285974853249364747721699262814120884445867514577593251867021029206154022626156383426879878937702580725714104139379658137807650532594027117320926675274482962066725444176957590565546119287135594953
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 46 of the certificate chain of a 1,598-digit prime (130 intermediate primes).

Certified number1,598-digit prime
Certificatedownload
Certificate chainshow step 46 of 130

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009052923987 --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":1100000009052923987},"decimal":true,"detail":2}}'