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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 #1100000008680827131 2,330 digits created 2026-03-12

Value

87660862521631269372263656535621022515703854871835374497507920035274690587643844895524083416152524071470291430890290558975598093802464176389697667505508265469208172800284345613465754277476382703973940139034672608058160801487224059950874285198858026146690157865239027992960810362499654128571083207234671461685728067716437580973030197905269236764110214850829846142135303618815508740939667965478570157848237272205740290297869954409821095861310453495429675465319523730476030193501662283259180849560137617399903436177086499568310532050208682629452678507784177744553776378534158071968890043784155441709669516128128068460567000463441810154843614131594943441723696872760589687104485457512098198791898120998142617050004351311455624591428878365545484440003262773859003807648662772932766864357325778322867398574295871775768429601251027661712403800418211809299366474814661722461543918332818312402400705542455798194842072121751200832431089187154839193057229035747741859528151358269933308903623964287558042754693380040376872307301486589259883100498140001058771848124974917782259945572475025427289769775566374838611545393387074386265880883321575753905296522201394454606196649781012176618888430869740200534184962015426235148192014499947941967935465890071888212423944361222648204486542452089350826262885847886346389820217256721482139853750769549205453284830800441525370730055203083146880121265868632023647624524743126556466175407565478142100075716057713035229434987442864708721843022255854204907774718144650089191295750421094930722975443185105511976815178678642093615651101951268498365366424045480959037990638395745845558378154011834842571426110254889161931321518763341626086104626921845614235490229752830922765177976807497104853989235947247046117525167482974312688420125254272869230470705901418651807379995194392771673413207590602030582325107075710523571462196777961168296990474440981236935796253076235838862847037342880355435041283535513306794822237267904408429016087750874042505146360125000667591985677469615391961455019833168896847984330602042619515769253395787156812203421962539494035941020218491810087661032478705348178132810076569457081374320792026362262179040732063548397683746559778331584087221114917369182031550012327820189631898636279810055080322215040166806223352428760816703264886631216298933531343971914039064198621474749101275754107
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 24 of the certificate chain of a 2,694-digit prime (164 intermediate primes).

Certified number2,694-digit prime
Certificatedownload
Certificate chainshow step 24 of 164

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680827131 --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":1100000008680827131},"decimal":true,"detail":2}}'