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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 #1100000009075599086 2,015 digits created 2026-08-11

Value

20794591049542096220036937492522808607762250355087073177808615468917705826846371546405900041744302635111235267922109137778050489217019720654399893669547251052901584997584066502404889821568240152811223774293875857638317652753129026708800375377901042578244496936600218287000332585190535361080621251025539871357656135280886043090472616964012557795893986448470582955408200749807583170611241541321625229989335511747578871668839566331105992102856568476159655384294034719527618075609165108539162981410775835126881011420025564651224630177587230698698322676614875425597214685386389637552376341761370492102236634446631441066462236319545811804414171358609935494814908749970033228921370042146339406536732049712548779245527681156178830831191536776545457326907250405587479133288936681923743288616311241520559646651551533087095912429948222199140643472410205057255904127655494857915470443200329206401010408189643093831164397791182584006206449897442522501814601823783802680247374409689162035956019321737736025296829382197789156242195247605807904488848060510064143577342484678679656975750949823160594479215567158162070564070964953423251183986095572029286417045250176397604020214150463299968062555678780959723460023145231377123434553467740138836274534408110749800421120389243643845670835670539351370921219796274294691106818618455697470550911554280708828379681729568321069576857771254028499092208343051419112478579837498648949454145185693624517197406625013153255590127241184828444240508613816090067819608968836723463158711114143358195389235898500220797835117475314039038461961326669571518400543759715452669953465741741863063378777363297301619309668669448560811811801832710997918038121316985298937176726669190341805274330008038268867967233057842942506176287259939632978911853137144856791871675802608130062136874025358553324985773272824724634331324549716904050264580192335843651288316478846254500637811541598844234522706797700099279530901022966299223870469887095965490417598197640325054078325467488338116048975009874454466311041094277749
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 10 of the certificate chain of a 2,130-digit prime (161 intermediate primes).

Certified number2,130-digit prime
Certificatedownload
Certificate chainshow step 10 of 161

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075599086 --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":1100000009075599086},"decimal":true,"detail":2}}'