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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 #1100000008727412128 2,474 digits created 2026-04-05

Value

90935989958767489392481774946781284130827284088405339285472618480633588960421961552213603915640584490658228560102817203888092403325161271028214536745823204841641729920537290467744179423986222745318914040345121979292403370937346776843017581065565530363763703894076850564631923629691584096716773490549198322218977936843105612865152900836303822187232665435337549113868363434552466544568056602763181322396582791369526033645498771051252414136217533012827747983041787917365343063608872607561631491094671276724798301215302395489742056428222056479326301619790826272722776650406779957485931759334010465820353143748815350534255641520844621402211015709876032045034885633562228931425235928594953087116919579875153203124240244272662199596811373371553393853834856449366405594379802898634160925730347601525155103412483139545226616682807236685980364730387370330285292345584913234142499789482807291331905350891420289589439707699275076361177912934633598721712281370701946795123981326475913746821332449456806299188099236968999128680446571493866473222377595733867151912974597261799036624746233435643169018702623642847802709196398574883422494650444501811598360260420434450383832199427387788883328614703867929680211830029274193398683729459263716226497606588195122434257164598825627191196748072229457012936430358741404139523412720877910111347901750366704207617326819524272152498724248661993523383196485301048894351188129397388354949673566265659474287351391648258917223824861735248511588859994373198522128230422479897859180916780619439291630859931292155030108928353973016078958092096763185101859690152233407612159298852249175874133118562413034602370695477250280419602831846800514644145123465654762890041260130969135381718136333790001250731617708569219663513943546242858962743828004504350031545293754801702068968171302956776667722612431182533462706374582432952797237381336199286830895370483283724708265451531492166088494281725418962290187903601389267071493324745058741253606838808814338353249210150737774207196466974074756331908736537599694133490699581498740172726795714552498686456027219838689444485932914834915994395823829069074032848185276653314168041361083242346203421994655073153847199598075340809289883064178958429312816925911476339792422657088768298608328819642733436056992979042241302568086295696629535051014758071693101716683657853587258432450136290450453315763467574747324110243316020351465817783115623816283906840902899129894853493839972815214222606318055254122371744820136351899719315559
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 33 of the certificate chain of a 2,772-digit prime (298 intermediate primes).

Certified number2,772-digit prime
Certificatedownload
Certificate chainshow step 33 of 298

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008727412128 --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":1100000008727412128},"decimal":true,"detail":2}}'