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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 #1100000009091972560 1,622 digits created 2026-08-18

Value

79008750054426995408358812879962572924447672085784467760472705283316606866426158214435075402604072934876291877045698831651215521174322482826144231354736761618894648453329138209100316434190088110856995296812998447357946814011698182364256279608528450530170067409202806996680644990489982095064618804829204373136561862457688573922614159710830390486980266764358746566803756397303097990499989793386902759559308540151641419679557028634866045411198274281840277160913430381599179845816242304292692506646539921710067587245550123641493387774238111748337565256690553368732199477753104254768098229041556569995338619536699086175073619759758719134565031726455562824820345422148995471236726169704263500366574484384163243736488095231647477710964623743306795938155378843114126505189339679940074202072018373798670267523548688465336467119826414324635977005215825074058197437007626447986111084034259020838886831842760070942111675969504164525250296484485760851417567537247066192307279067394530846445160958696231235970961229721802691523385276368140450624040622651525050817904219506047238328563308035179479618109961104573271795749049567993604727890573484308850930695766534690159948139036684941848319642811139951570794136952550130907008761127292370557413666884428723397251089758678462923949464699618757192177707424445137824261605264359743983008161668403616392838068128286931099660693734882368859110079655766454993100659607641018500133121030962867311781325673214406737909333466602736993286046437729709333508025256081265816371278860718465707129380800961440750624353953640230503911694036382954402137463779304805701403236363631378005926997193990267077
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 39 of the certificate chain of a 2,091-digit prime (169 intermediate primes).

Certified number2,091-digit prime
Certificatedownload
Certificate chainshow step 39 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091972560 --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":1100000009091972560},"decimal":true,"detail":2}}'