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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 #1100000009042190235 1,271 digits created 2026-08-03

Value

67979878723022387455086883934669598420063660674715086516862442336015568570915319441915553088051293747818733873773491191650955907153042128589219294613018698889557286979487069791432971536794920102658443937702425569612869821721323525470671524246084775125626020216573933245413603776920103599747405902585815072529092683552847933405179326936934665993456840604543781467236217446571711351099324804249219098957250440420972585266958705108205681609794658344753974532641587453255646457227950731352127184031941642817293439118749015031450741172097999362482279295071303798972843259510945059461433229134442911934441076270044255120735355950060488760858815461807959842311963239420059160762157134918091737954917775301281207527331664361347591884600600114412802666468449173445454033090971287111490712459997526990758890430728015952074333379220514855508210224811482729350270070075621023532921258775429141244757528416896349182439185240627576485405375241954846550122588008336616211576445765943492796330294610906435069890892069576165947808122769421841690910117839179824420699025978099826502125005662609361494549828681695459224856494904009657946915405735661143612908408291158868854538144806984293117024402725868182650732692956139228445419158951489909298629029104685449119172254751068932607492870533
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 1,311-digit prime (110 intermediate primes).

Certified number1,311-digit prime
Certificatedownload
Certificate chainshow step 5 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042190235 --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":1100000009042190235},"decimal":true,"detail":2}}'