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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 #1100000009088757975 1,155 digits created 2026-08-16

Value

440943703423349933638795098666599838488230554129738843398317346618463819248603374451077871293641901812358073693478112163567662296025380115340465412685913061420725770269236620476635068370048546998936614457729267250451187349324580220569112470774913925755337540198926947070823503813024961963823378438804137636737241383129689173092632269123035291833028030545781049562846007177503242999649061531766803900908402404011030257127337698937782337852142220404192255397120440816706129460480860704733966279953742118703863153103371248945250588228713716171519156225971949034261074311091029889058500868242109241854139123650668562247560630984231505160263170289998662532379785838377697085605155871261081377156140132973622155028383328166338542548425401605652166745442628567183841617838415608191890822400177764975573971978140473470813368100828862256462687628577017187788347855472286199736745956258625142122266732822486920502459859701349103959761050130886834609819236905106580991932348766404638885739753563121357779725081559965904998769996626793981348789456333256427390131656870471170574235575975681375858022197123700444738254034225691821432165488476916019737796721172328123709
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 1,975-digit prime (156 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 71 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009088757975 --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":1100000009088757975},"decimal":true,"detail":2}}'