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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 #1100000009084007783 1,917 digits created 2026-08-14

Value

559682550484323472731121869353229618966689275752333097676327725988960629047384107245832412001879709140024804478782676732307379974857831707505952318209967112125271891496552330796716422820467151129167216711858220343639504924742317639820432679814055001535757373769157398654157655726111824592665009042704944233116428928773536105430004563344178287634629722912299724091075598530716660971525524918883433193537499409131275630701463869440031476384805385567611996049530966312639207225332385266007437367491572505815935583556090161619693162121272386220179775392503346685627321391250378924313315179460091272003720720451195111479650036156556370549393532392597728762256725516855758289763775031298221847181961613549760618418905372043271901361268461727792574132919574092125061377810595144430241306022609985259181046126797097359131837133885840055530005783193084009846983415451681663531058558268804096478703623610510164644144330085937133786493409383775824727786449473995626963496673509542130230332237163738356656819276570463733701269971444127891436759700744573009121888279158335441152087853404344464074264215600794657903395660490337429787122175165289823612107449025085416034774509626157186717902922663593975473313223911731824790158070999292208141694508283786918026321686000656023137837299105328641037475828135359023803663148395501944034469290774405682529390808355632338087353021179803632789504643277717365579460903036834967733476107614733072075907433009577465549358757793259099613366890953224946134163987749852397080562725967619314941622154099816315871982556370669739693241593970433744109211000872043214298906207838280172645736917160029997239353954216746696942280440226494438377268483804944836460644418962167554075845282575839139713248999833091148620903046134402632508529354374956161230940105026569168821256862742812315038090732009199543946327404643854042072037498690302137218593683448538825924007738880898668156820193908519685709128593
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 4 of the certificate chain of a 1,940-digit prime (149 intermediate primes).

Certified number1,940-digit prime
Certificatedownload
Certificate chainshow step 4 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084007783 --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":1100000009084007783},"decimal":true,"detail":2}}'