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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 #1100000009104084795 1,688 digits created 2026-08-23

Value

28948560505672890066789541737910459262255744027797689452821858953908277400290707702455310936011872113223047252373159904414959400371100776960912150083067476480944116995306149225078774876311645791740399029397098541365136400407831524631663920411860581522753173308922598179522069273783125560680466612811551796294991490482098827384175667453976333216906494843152965398480132834234127009072569884797264394780573398297644019243821661710324947091233762570295740273012035421459460942659964350047292213745599440896739984476852356879628243008187765387289018026111765183822643927502571068724907106186394730605836687265619841071720068196593594221062688555884730132157355428113316320100861021844234791595180989316483457989783795281141102932680493457461279362792138227147617920005979451159150346248445650498403831479869059127566409168966661787398197915183271690611709922566588206643693676369516891098630294123093742210436348906793776040021046746028890598165746914942336976319627138735354435935855628339787314279338584947741297080466747207563675988016948632331951135731844528010677908130153063378726094248123913565081852389374355354777214198430014554962146730803727552224946987974518432754891131055156568357581305382065023758273770958432693106625064197270050075637529360318158319313007544926030338127518047788648171660793494102413779232217822264027383126928731400099934371907046960934944470659661477843885794596537682439576268105972462056877487094351251914562929478771760908528123120446821924606940539900664525729251084406695237014941459648282813473548495714342871813650729602462560308525680006530007959603007248869844523683931256975843851837466944167075715694758788138979819773593503369300105060636236451
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 2,989-digit prime (221 intermediate primes).

Certified number2,989-digit prime
Certificatedownload
Certificate chainshow step 99 of 221

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009104084795 --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":1100000009104084795},"decimal":true,"detail":2}}'