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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 #1100000009054491311 1,154 digits created 2026-08-07

Value

18417678035433949722224288080913603688979129569896513970150552733974799267274994573270435711846867939331823089456321611946254338981747481829294393872485263124047131929230538366497106372624246348874223398987360396495399411571485966845158586737230708648099201894480179623948999983716773876557084445865563813695186756116931127262005185535459327210888213650013457558441685759548383912619504805702589759116702870110584669995001681513619467729376236984708948694719808308884160727581432907888338049388318484240979175940589454376673165743239860131365315892476849413323731913780360122814716442463330435312010598302614247666882270411270902927524134027848984007813688302625130451623372872105817886575254992702945620241160936435756405829142267485389136365414338820899705190370042086263412592704758641629655156338790176148105083345217315526427959652850944555857562481921379914029441528359637226660656049222916124452678590797842762920731855128695161638548427827804181845347312734047476918360521281089032045951678022205861964579359206954674009868714138700548636074894657579939155291866407599210402307442108434713683282124362272446209331829456822071581700100982320505241
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 37 of the certificate chain of a 1,627-digit prime (128 intermediate primes).

Certified number1,627-digit prime
Certificatedownload
Certificate chainshow step 37 of 128

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054491311 --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":1100000009054491311},"decimal":true,"detail":2}}'