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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 #1100000008676271729 2,274 digits created 2026-03-10

Value

405171010959520649716970796017855791103766232538703100649804760144095310918069443110851574837479540062519231209422237732214536900345842478826813067906326366803202025487242285680439000011214900737638090584446281861465876683337564376067876900387798671421160864005182326519722744189602769585358359720022307883405810587509619679556669798161113749727403308047219617643909648193126078715029853512612393531820731717918219113057860598593885724621289568368614682107353302044981898358525747727358045079661378401464131683353824980012779510971516705419051217801409168873996179322844011506299501164125802063443537206002287463359388941784040447071492339635543748352296181297923510180669950435380917821881448930957145860351235752700956170985595994777131647650426200380412013051471339608126890985004173019459919643840413940094278890689744770745833251605722520434632315725079131638072099604346836200286116155496508974644533438121539048068831191139845891863680659085548505817592058090420284406607537655903145540860469034132358266149291023814508450038743858437009246494625078274028797386988240929482809494142713188364973200728100378020090716371110020115902311484534833744527550062555652340747419266903950316777624614494778654984801460990724185700587833368985436091974123475014990676646717427733373072883505416111659403857667214011486121274820426527775603043953084588863809921686666150038355117716875898438356621620988250438819985181045337443462635400694623047482955280732935537209329455847523550168492992477337714980565473086353207834562630059669919216246625192796856386067400721998374594579090401251509560058736285057069488337229966589084214343574586259141696016957874804731645678059647888380367720374531525220624635123320674930230064391471123364048711541242056191533195125219514078878014882877226278712373527268671940883680179406097248907188018766770237926297097030325824637027406212393816718440252739085913626769853259979223436147397822638835529875296213620186799977203847232586285665581888395635104275684119113350688875327635855423136874793605651803608938401455049291484388010176859666843975784828191605303936633381564462068408324558459216418438437783260598801135732488851149740946713663886112753461241561006479525794495859285598508587127188687021973825204789170346274387962012831187110537
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 2,915-digit prime (222 intermediate primes).

Certified number2,915-digit prime
Certificatedownload
Certificate chainshow step 54 of 222

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676271729 --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":1100000008676271729},"decimal":true,"detail":2}}'