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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 #1100000009067938155 2,264 digits created 2026-08-10

Value

20350161601509122023486724608760663873162377846895562642262384348362850982860984231246651829990016850869068212356185350212139097564732820796224775781399691067851109273950653961101820154900010061820108398624319011935110526163384487219186546463160655197969066651004145942885140305944843373689641036088766785279229252794895328756069748665442469626826448368727520286735009024669369970511040583643247028563278715222224351178079893313371283056930151212742871746632362995233031272553676507762219562015610474427146067970610595213657260518199096287616696808079832313046025099316519180859890886997627765201580517734020884727013308808639354853602822296201455907757987725017809745311527297627684813318916684697378836143706498404280922150106968650774868798618439542702110526381297704779952784411128497397179429213768155791158650599652199134822466465666561304992026738759691302239435551300687353147137449411400811592248050337679413939818923107689610984220797684886436122109201013097522767467641796402095605278545771758679389989695193661276121657172300553115317750977049693262990984568101781307981026407386806806664342577606075036485788612181279796369268006995204640679135696739197551533726306343467783726009942598937936554380772304053793004424634111794406649877772196968483474435919738477916763280012834182938056160741420121610177131983951337858547701190370299039558300893935540247170420302335368953126122427462132083359094812494661243793705104315845473785036595131835405385399525847817917962531755991232998510979059588667079643423034099042230472632242508490682381698720289679425360957244581560554213796669897567370513837654596472123719218671507872951326968761353972791840410042466713099001095544831322576310349119572221457490515086504743212553454426560000659188679831838363134131490037833880239408646779459966047451928194284364761017091698638948771920064240949996228210200640004237589923189543343433855712771470252870094459986358407923130635244508012787167382166190926477820820735026197629668825785310492954325429721951544655237786709145960871976975058050221952359172656843305206964307253347390960773928456490401679674349024267346370053807574649772973936844977439696984728715966492038335355664021433141514097912144644714220634563526541729758413182966836456450686241315009470721
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 33 of the certificate chain of a 2,638-digit prime (209 intermediate primes).

Certified number2,638-digit prime
Certificatedownload
Certificate chainshow step 33 of 209

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009067938155 --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":1100000009067938155},"decimal":true,"detail":2}}'