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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 #1100000009123519902 2,328 digits created 2026-08-31

Value

886748921063841411156248012249097892266483217847805170465810366010358135701666130234494362976138881296035729932710837773484732452065850936256056893775409703489726532885175029517921648369003038231594212044909711549599938187901540421502645458315989994139980549028156784913119209573457511603133400882861013245185677943719098445916426907561814013073942265914184907532893165634668694619240221299837362495405606944969534425794303381313586970315994443690230411285539120157859769813912878859521078703627760590159234399415933431329744496745085658149344036640710138390749127525665316266654248727456752515685304602609631467237302787135143414474628348981270845908516809398044605238948892139580320653392886575847064027773205199318026797104237153512503440683789839403259169655750540485828832809212865376799869609674717642548525371637045577803823940827942555387262863981978802971485774700030362798815932701053982611232772781143095129979939051252100132380273998721973555827689145799572093878060390732216495543806468141669944654908706847774872552203325335680279642505943761719412867823733778881067887292485989912324167721447072195028414639844734951184552650561751208360621134525103196174744504362823669970310415979501981592177340097742271792740475352214980239634235235015331428066527337055721254264252207690427435320826793651361895647674921829856781769401367507559469294179414107130213546044535522179719513945028795750686512316044524598842955883186204946461197833558415342394151210282930093502620013240785626675482035903226659838252398260456403860911821253335616142413700075570937624614870473530620621611199139260058842199510879405762374093852475023212993514946770446106492525807107051256659673923147712576819789795627337693866837963443030621504015324853125085542548119838062002536456474120354952917787682338810650195802719832675873642028531148514539688234744054320748725048750523929082940365956847231058612585740481993846329609854903248002297937793757365589548670285208728303390667826084045802898207723991701839996326421008700273506881902598112847064539950023034870468153016452012911472744532503882886260325349394659958655971128735740533209908288367291378927616550853512477173171315393432081526917114743556983277222444825261862344056891338065649124904268098624499851955735098676268978902281818548934569238102200115346578275381469655661073164991
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 74 of the certificate chain of a 3,062-digit prime (314 intermediate primes).

Certified number3,062-digit prime
Certificatedownload
Certificate chainshow step 74 of 314

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123519902 --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":1100000009123519902},"decimal":true,"detail":2}}'