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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 #1100000009065128357 2,064 digits created 2026-08-09

Value

233204597209707167947981277860867804842310658942305962098112115182416783211648759120438823766900994897993168970164907291458988533911778250896896494526302030004433725627876328811242310757127858053825103833225451023343231926267950842883490896091695471962896060621519883851637251839362404729312174272168859289848922252797929096404359356327997140477492041647560888154753152470882985201724585235977558653227692281668678956712584658446179797532893354395946604391461448475721235057829970234580412036933680584972685914972436191464444748779295268597090241529487217054310516045693785671089247608315136756162208916555381570405712515306473844946439723075122457558524825890944688215006654569652328808699391676850199021616279661087247511597763397727439134297468110596728759064122745854564189986867371612781995216502660823292193800790035442655628747150059849164490578144299296206715364227962518063185866805106820570611694026210374495399810173673415166742871332577174326745145947458633292614692095715848820777722233092120506387080664679454955952303170382391403359891575932649292060068420417281004327100355849059638913786833585687459831355062774979011657504338555129820798948395446715292100497728585315065553741492004746110520418625504041353544987319916676092553867909782627733803305087336237617219073798173751173546628188171536867099763847702128307845150153322201440682790373134241376531672022934988352700887194754534044683008605295685943038263728861516070841406568464945423370454223045497222363736000131581392000294189990337183227170995348546311214548081732586515277747774171598589084421160589789037252120779438913147697594081332864085319243186217853460789154902281338588676075327625609182449701377363602234300303141023415103881234687758122034564436965514178566108662380976528388399066618956737578205767531524039208659736535423944338306268964043500039542643777852844868584418042002826022312403316979233735810367540490423191056370892965694732641258237270784650473690047515827070218734783106151677948394380993570403648332632539907471742086325981152381092095867203798901528500286417
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 32 of the certificate chain of a 2,485-digit prime (189 intermediate primes).

Certified number2,485-digit prime
Certificatedownload
Certificate chainshow step 32 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009065128357 --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":1100000009065128357},"decimal":true,"detail":2}}'