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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 #1100000009060076530 2,066 digits created 2026-08-09

Value

19785167524160201250310357872805437812435680834724712187323742749091753050836275573805912626291062730350560393770414803155130287128385281795587645139402506822643112795288587001185620052457078719374844200024462482681511439428837608001299015904369282388557531983098244682595578720869170710970673977815123662078316822390443051019016262463043348056768108151026043160126512555731305938899330202767679688023405827780153807336075148523468538760543915703698277760230967463202023977712670740786235654214599865061235635296374988357287773077248640771018814319442848254115666495784828330871832031492725968002956104919060188033736300618240236385095401001966466104683220117537828482152789856581603122322697769170533956231159864814187202338908009563702505391714474118684256217538943608744277918002866610654800657683878290610092779264015939473169188492334906463384528835871857757391140821703524154162486984490091221314757513744084306845994957728805029123692284059552612333732822957181398610197117080309467858029588542864579549638273796023881719050768622229160842863286295223452126690746895088455575150054432572195362111148975591306733345288784873861453588423387426543334014300084107044403306204263297944436079987152391684633547875291895845848995269872257533635310293539401779603611672490896870744828947993715467814736458964733186836652403536022410007351228249502854994545349797777793659009473906107013706656839470650452980641485667416577912805047500925682132924933940479375964964633458342395831052008055893823047302844540437839154631760553822531017271691300783449812884287032355000570257370882289189820598889386669614610894738487058565905357138275270645650188856136480716863156270030745743263586533221010871313641283293294619737978020505700810232474263917395224554096602162615204664965910393309968645848749833344376904686748257065762255816526153601181638051554948773662524912236692562458921213083629995442735791371943554716337698892021813419052473985997236073738612452364247625420188650145070844583867737489436173593583788269860877290186366448910722681110109434774224313436384120563
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 41 of the certificate chain of a 2,611-digit prime (192 intermediate primes).

Certified number2,611-digit prime
Certificatedownload
Certificate chainshow step 41 of 192

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009060076530 --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":1100000009060076530},"decimal":true,"detail":2}}'