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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 #1100000009116966402 2,061 digits created 2026-08-28

Value

628098847378850992242837454058272929817384315279869771287683842188227748080964931659786216127032303387335659438328830448347087792590276341762400634852804986876369192554389021215219993689611908936503987889888967947356510361766986640894999785342242413132984297843231681973401171439380155089139554857646418791046814562278321163371122770705063937485939742083559861805408546127971381719907411254708072391292662112528132230573229764257007967687222721807762029976301535088932835301664265472885246615838115330771641882297483880788876602320076382758769607454566819821542520379244160292329455965782801727256380532637886363000624513286840951631649165803397908754071245577654180345702776772880611597531105711680249737383301244725825526082524651127416710811471656256733385378063843321478568778479443462149149609975688977684609349471264885522123419040290554936605765169005271530170466758152313564285497049229553168834882301416143057382431504439725174912609015058428427831007641450496808538136575285614743519033340981385294063493699419534600762289360469027637886261216390992948972967009130059043234566993968785312594905946838180303781940342075577081885685442786587204050040703564712134652137773707074115675332968420724132371349851490950887693540031625853788353420229667874122670606879653532361272469044125893566199037452240074144532769903053104871511885036633302124059387757376028046867776418849101586912820997127055807497474639505047951517471819834429172851759549285938278971175070111609826513148698042600520134093597329468796792451564420474478209827452840211811346888970333388373677754093382938166911893685124805333264514777742160537071573187998709785279785975339989798944990226972795543559922796737301371596172665541593195932054184935600004289325287497747319333108374542220740951148009016525264716485322923377022221219237617590356795156333704106620839134297072808492217041775873879682298612781972376616528833481566501171150597492542954774696030806333069580202614814019066271065782385134942883949074128046314092281411219663936157596175269698806652128274144498273182484189573
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 3,028-digit prime (226 intermediate primes).

Certified number3,028-digit prime
Certificatedownload
Certificate chainshow step 71 of 226

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009116966402 --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":1100000009116966402},"decimal":true,"detail":2}}'