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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 #1100000008942579749 2,218 digits created 2026-07-06

Value

6536839679009316104255748197735780026643560037695259367021195845059614089479739785132436834911280469409406300093357250211032308720465388942870066933928822416884156518254875406547564312099674453706475157913921496451246451043192186383652395682978338626985742462852254717529225846475967541846548597711358808955468010129876756608171430981817171971191131916113413075765044416197770966429119602666047116269102278345640481213767122065437282826813001109184119121371842657778202133234366873452999762302210799103367719399366588521872450584017389813477448965649479397560940877379058813983343902833332127517914998823653921447120633622989685043587798022366461848349033026676769863754147319694622436848039030709450659810506681202017736722800395523735024466505957057858881692815009438320463956673568866268553773066314359214669085784058364496612486337544651493251798567200987196839348290140325742274210137726165519711205868095595072045986446123968648761360433627019905586899999461141560999021014370995498650394810443921497948895316700165574274298868159126813012298673519500554218541184453611994578121865954217058878618581110402538563446824058790980463544874417073791836645011291309906428438913479449169098983381004656733701738393730699903303964488242103968571101995953521509183817744414742552262467604619210288343776248409029065881066052577361345803445138202131023309310980056919737923157216915006481546724756727398266955200465734543783261148742492357281417379546369710101107771735803329104283730116606786850093531960562312854626865618465251603534951854628761901637147837019228507138287860332917175184069081791508001758175486554036122196531931001828737149954254640159070727016299766665900656478358774297992840830385411059755394194520041233938451200865256184548571323218032759433296975100538015922972712050385986459433595373485949830969847317806895604591194989611009015090664900982752133446520997667804313129693349896457691470300843266271572295854475332636983715783548317044491926080390291433004311568845070145153476623393538369345683003390983697944393564712491432457053732938689478157670542447974248138432624672150735858019709524920930780828936293918913218600062451622219001022978603054857841233991233990511222965801606372591364982343
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 43 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 43 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942579749 --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":1100000008942579749},"decimal":true,"detail":2}}'