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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 #1100000009123228169 2,111 digits created 2026-08-30

Value

26706710904973524138219921744251525463791243526307692009865150693057853566597669204602330152159902313201315441742393980937616770671016065168193922277964331021567482142682776228672258273438643656522504046755837824342669768770798169156635374357904350608692469688174345924791386708165309272467748056113058834121353301582606737059324016275519474600436182592706705474183794513648645035144520413356291608244815785501802545019723608353331775857240009913802831796799926911467200488751783114963958772302449921869996908300924464489956094911291335135004614611194745482040226045384821209466516632084687197588145579939311553604674982900137079374850732025151470458350043536070347386405152863917951161718257182188180164649092447812146644005036553619109534790627114894905295438710143627467836918024204823685493716027416581638273522554210268844110169278348295132130641070203857108305714150918228450585477707877895016551903567681265596962379105521602563155838740433842897217498465468934740397434948959455305938548834427638903027758395295796545021100276718311061404936325372286596356342057704757094251318385197860108442581867445417391019803114213002974159308630187386654749559593728534081874517185799798118046344291786579725111684273785901595924395990262469445497960550594821846084648117487546043656131093814382246508642214853920515389087462444255508534321776845561711833573635326674938265959292726292661007439415900881685294883051023432629577164734329365541608836334135587242241288465633985454549026063786585192103403149004764372084181186718286695387737161261613451370696078023772031478649045813239294231689550479314321300371769924040290442593973023448538739698906703470561288108456544471629151317424769672112963514512500555145339759403972929069789542111549390924701203555586905247890465449487441408943470671319927310309823252665415561650534952571572260768681078637731134189389591232429683015830850801336339667890026059002860568520722972695271158212416097367504362763082874356270431840759089788619987415539803705250730070616112678791597732502947105505413328152106779796939631478087745595464196548067934717093801331564259557800041
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 90 of the certificate chain of a 3,079-digit prime (311 intermediate primes).

Certified number3,079-digit prime
Certificatedownload
Certificate chainshow step 90 of 311

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123228169 --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":1100000009123228169},"decimal":true,"detail":2}}'