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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 #1100000009040166601 1,008 digits created 2026-08-02

Value

567969095290931403345281652890822831968371777584132839757984203873134264809275593799963137418366611300688484614415317541647176545310419944326671209335967957341147310673089212547664939523028208804273708067996314121006871926973425723155984700162890880590078988278947786107637923496799409055255730481316835092247587640102117440134779253400249127516514443704317361531088309136940277065822437901341001957381520810608434069631826211764923751450843504000887833755149847370503557303083583395773941391448940070288368487612095361303514143178712647476217891416760670029555569773283503171515730971389215563879124367739063442359711463774448665138537045010463989593009421596906538086561063218608946880850789022353120853725621494903090812521166821122806137407178734156757234509155458376441441697901734130568779669357825328690856877274757467274839267674316195365963007067526150554014662154825066419508290973354368747356642793655567606792111814595867394785834676968850840083019898771125596208779132925283148375724123619118141
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,258-digit prime (99 intermediate primes).

Certified number1,258-digit prime
Certificatedownload
Certificate chainshow step 21 of 99

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040166601 --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":1100000009040166601},"decimal":true,"detail":2}}'