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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 #1100000008675223905 1,779 digits created 2026-03-09

Value

188891296972124819037689258891338305774181874216510333214162903438196592483125924775305095786568096730547754296805661264975605108174960251645374377014095604065671128642621853253859649167351051321297818811715293605801469912059859607412254208028496426703136650367464290580048961316662482087452234099562799184539659692031094951229414152384539840503066113744386549840108505777104292934842612203429172914026369662094151837191571422290010592099581063168470920481205854372053095629348374025639605972757026873822718894135731915243856378909701592858559095047384354165110132763909292544849917149411443486209320975155488480237498260660873440750577146493562436234200114699205406269893144798439169936723547031724324709123795186226723801351002216405245112599084229499638521378869985381394881855202775679036290551547127323479479366152636210057388899824436519065833801899121512018307345754388573625418703160741844963039810545641606197986067240957778700242122022797923474759027977955301609299850685572767484394878386789392089819527076373724126687387310415826831708395504384456140235216118080117677574720860297779583467845221603732011194362323281450909593488764161457872165905133882564267509082316312580793780943147037337808001832071710321332461397811634610580765151076710181170670363171788708080837163179399889891481747871274171156473022665102288053563312021885553631392539833625251369099597336722211592937591525664854399662891866150535009671030755871667591022903678189713359079962163622314296370603761478680647408078784935088918079589459935847471640543172182728516088059130360287759891700748108980156445426793685730406939736896824188925700384673123310081903172249422320682987160784437892946269838767734964418230847319284388042189053705650220191556673194402614800034158753345168421128425450462863
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 82 of the certificate chain of a 2,805-digit prime (214 intermediate primes).

Certified number2,805-digit prime
Certificatedownload
Certificate chainshow step 82 of 214

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008675223905 --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":1100000008675223905},"decimal":true,"detail":2}}'