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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 #1100000009080761458 1,957 digits created 2026-08-13

Value

1126127982688884482207658187766369404650370979097772032851307106191172207892545091856478962736015464251037139921495028393174504505874165460483953811751969364136651491754535593160942181368179974858711014872001188897629362134307339714543933572113160480693399438883217940262571858716221779089389516165133174943074046852281480390291119662369708213673378525258142128697815070445510599807714729312808931011483636224507572205811173549719067992920090790142299747024431126842802772831637422119971178298087432540181450011714676809774797540429317238982447123647822109133819979029070306000420634749462645382046238460094853442990578090177575134459455224558926624339175670696597800440105585138942096750176073840101424374949724544870807535187276783849696419121357098679189445682657479954752847954401947080562798273271862841567557994539656776920974263301198359605051600015304741683799448389931347595481331328493009324656029494260904761387196421219257869870231339994251259954762390872238929433636400848918444372092396111719228889105529409039666188692700059968275017751645106107409765050460093711397857351079678070197465576583518372556808043150160289927530774493477270514798394191612437961183842728749959696673120588753178520997079404118693433261207783841736597879706921799845726156037923403263062090389270465292458175747609627649841918098011013463195243554499265167016769957779619101643170140655663365057010191707763188422541254762130390041868475154918362244636294435061484418702069868033187330183362664016089425949081261451435909593021185160747573700478891562314002240685991685333598546555225573135638409168195325596462556541240327865824047274398178657066092877727781266914602904109815591789587162870225661995995970956781241532654456094115517422602482810962854958486733974546963305932218376140896370265055740938445755758706338870228960145187096292461919341882825883465166460620088288646118935301613245591909836762192708176191280774677433641000174903728721490532737888330461
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 17 of the certificate chain of a 2,184-digit prime (163 intermediate primes).

Certified number2,184-digit prime
Certificatedownload
Certificate chainshow step 17 of 163

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080761458 --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":1100000009080761458},"decimal":true,"detail":2}}'