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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 #1100000009060447310 1,728 digits created 2026-08-09

Value

120920542288070967937681211153434951576707400692306069468190086619676281783888017778935987499752295251269821173183750166052509456264249654009918307264261902658423406034557956790745780606297224344112035351724422440758287575012983284671683726229796540300544043273863883205557596833014468028920560913921047510110193794725000956918606579125417024382996388959854641476982553899331781387462096850992949298092561463644937142954781160274887516683760119437695004806891746783994105894916595020068693470995574990369495087753119058536189021564904197123855267459813786298663931975661999622219964212225746225248584622275657114776193131650594106646793950514882394282002786861816662166329332060702939412486299890017849684359965279364117483628106142007226077081981773124798270564529376308103295263348021904171503928928528488497303094595475200542101273243799915764539363282883927789800352349756751050773283818328886130380180323218547580783186825680738038159411367998255917316430397782644495042263898435799351589865376837632762909522265171154949093651602754546283959632798610073905536474836995312009948049417088138309277134396793468664468575255965149748738665145899739077237260688006215965619827671480148634124634577042927568363805615690881880433476031485222327766153143945095348695010037992662291826538119771254294006142521368323212514262871264709387916768819394025277037619644525821635757466227810890341909546554871824950840759149410583739571142725975156903175171167128986251675025563875500659315362175581091143929208111744873018451492571570836359603976967702822700040049417920916615451004396916961958375586483184054484065244215642777124742702928578824916072231212489422679076680439234660829712450938021357410367998397402379670395076730986346879
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 2,557-digit prime (185 intermediate primes).

Certified number2,557-digit prime
Certificatedownload
Certificate chainshow step 63 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009060447310 --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":1100000009060447310},"decimal":true,"detail":2}}'