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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 #1100000009058402948 1,238 digits created 2026-08-09

Value

19739069806364200622237379420619881009778125477640392275485157121158173019349850311153975677378307657082341524997979074741336578985005982431832721062504359540781929657322733949166734392865464033310906726735265885901296399186217809699380246755713518956568199624791490883093951860940960554866976305740375304023597062960442986459842449946883460464759649088139369000626272930812746498939054533895778405709814675338205527226977521131342756155655574360957733271121276390980026048334612055080249681165148424287042376270475542674133840090378671084957165377358918344043895332517180247952644051113822771430651650111299206477921299036909887175121493759505608664471367609502027477957914170192984599577386045570995500178925793133836905215386458848620819801671090978488716337114672557652083247487273567939509363989350932609754258253717869774680315200985147766147875817940827139472416279887330908483941507083145956677841615941823169809819879859622103057736413385786634039484331334388910245844253090417103111242426174946441178378733075940153577452286640898552548480034945097011221156662908105638665523550365244380588721257483707893911695397551489433792856907650872083937403615910418612344022180361394212607142700730588305420381469048270208401851700911161
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 1,683-digit prime (129 intermediate primes).

Certified number1,683-digit prime
Certificatedownload
Certificate chainshow step 36 of 129

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058402948 --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":1100000009058402948},"decimal":true,"detail":2}}'