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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 #1100000009079887882 1,233 digits created 2026-08-12

Value

695594347021623156407734504553573456072633940157985243147564540467242194577187100956813504176384227050654571242974361059031271954540299850044446729125047741419613785759865441733190372799698764732015991102585972806119605609538519917822797955339047242642020750583730985545873821773435582220570199384673526875119721515802731708127179626071998651731666355798079345286141566283245459653411986806092494191562884688350801578310981301876972722415705817922207585355395299377546115648569851810470468145375374010926936357926721677327209105297044731913795902148432554875089179731836235034610138662665479240465732986530936003045416311262337866673361594754183022296732255469057887052309422707266871445084001611795742037427764769931145864790051266951582392547794210543138950049089807703328156684044456767711640577759447631933924830099416160992513295033583409030171359394735429588395685959525740649901002136474872081113785492844878021982748092028315301382829084396127248454030311466606802498921456219250144419852683675405933591563442693200080639441854544342810766134496526887503810787651068059708385372764090556871645977374675831195359042588713275791848378954536549030704027893265216722064521187020803256244152558093365909781230109731460745957056489
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 51 of the certificate chain of a 1,859-digit prime (140 intermediate primes).

Certified number1,859-digit prime
Certificatedownload
Certificate chainshow step 51 of 140

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079887882 --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":1100000009079887882},"decimal":true,"detail":2}}'