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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 #1100000008680399862 1,821 digits created 2026-03-12

Value

176008679359421906973339240835782062156841570941124038758812898543042800562046459595549160547015318344974958535732695147772276215979687280456395512385458022122954144665237430871139766514674705947402047595326895342918154499925416249098606921364148776910614548262810235482900872972832899763814763411335532460134905845566018131876676907318370398248096409750436685101433871085779188031927163601520065071242902642842312797428967282151639475031953508698642082742831179663967677559748766836424961062516490521328097728470056144274533659080997180811240509706292152833005352790419026900362952967296294513445094425818342151990962499656483170851019866934472589864911426884182573102042704384415397913145805702829585698283385604529263576870956573813893288075101831945722799623192310566469266704530035588168232952238743203064579528579947933920198910634250320189439308049935500690309392903483845620884329565810920228928100645623609518583290990411089328445744543508892358481058904107463588842902250279885976811847975825053907389138392040426344111339693995096357798835169430582783632362683280364399923757133266067863821905766887238191830603290874113070367204597128265834324629236801097728377397044387891559904575967916548491246035864405404886844097360098255409674156706183015711123531177886512499984341979947963950717057379718571936046682915534917160900972641018410300044372853113690787303531861842282025229209499211620553553891910058531598059674667918851538772664404344500389733151218919058280628249497976712192856467428012453856384594606011150796179351800808308008984366156164976730183726348905826240410531389838228872396399924570624226908892419309777466936546170564804694014289813494539499681710993357312266477943241250690181816480884877252199319574589756186992688821585835845038919087912165547175500686775416017349735843786203443513081
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 2,029-digit prime (206 intermediate primes).

Certified number2,029-digit prime
Certificatedownload
Certificate chainshow step 21 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680399862 --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":1100000008680399862},"decimal":true,"detail":2}}'