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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 #1100000009080477851 1,812 digits created 2026-08-13

Value

306987207866509292322291992565044294731525054970987749612088098533564697568298853079308303284244044171927262326958360725182504562691805708943940475953656837089783567461845209957218077670726421167082822834227408308067190065035174617643463694172107288135045221164070304724748038445377831150044827960521623160458494875726024034623037958339171840765791059426137266261674910900996845678399464212112968901539287830797982490628781402044675063695011596442480833917637530205473367030202997722062700573255526793321587438227035672653881604965080783707835446928100109972090833823048426116955300610497806682575324084255980322388608261382669907992156329393212856595286897699707503808509209503449891046729229094501787349620669755246694766075743933978499061556077017847617858550577631106434193184137895790064753582544664839212666584224586758048254440043635135037849862154013193309010937139409216472181757137914386327407796922523315183672456614980975662607442174477252396393614730670421187061692103377573627307010645427856466902538699525063817356050340915244416105504316448043988308610626381966296516257322366712681485975643210764989086573822213270092800325428135630532969262850490074465330257055979758687820849001046213730026770749286532601760177862571840386014022470191462831718664165924123732165305053874565892176917189574784186456692372826198828999798497541693291896133759675424571587665450297364598010061441267831154047744303761391922403131145983866045918602115519478829050714653718304957086416144453028583926129938096455194662687044756395155684487249646378517334572391268380637394331329901595779727231651971361365688512230425630053589777556923336604990897286406586027544717275386960002376350068527082980701661895327404213008384968921311847722576304483494750878487969330703370746255829532137433483256934704239464586046823359
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 1,923-digit prime (151 intermediate primes).

Certified number1,923-digit prime
Certificatedownload
Certificate chainshow step 11 of 151

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080477851 --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":1100000009080477851},"decimal":true,"detail":2}}'