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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 #1100000009130372909 2,096 digits created 2026-09-02

Value

62428745263194450032050747515825482820738062547899931252564453339996862590248300917324782411490760603255981159220523031015859971508301770989718897794019377176800814159327934365129102405176331765519938538155146576170729185612349460712371768462031982433218731711283485413199224374086505767780974627089075544442239192496269167820744691325493121480174935415296749790833176473360937498454532383410984953558330831806963641155833055221827091365203144400092427874792365248632278763110725660217619510638346116276902110005941626285112908731903751328177349766682956374596622776951960643148174883213127259111443465599749939067033515570661748510973430771364390740849479244424655282675528632440008561397049143618999770163259570821630661937577118237679771333782556377875776121984322192340891716984636331187713630514312871335638113505798669361455484998269762830416990514813154978764360991503185579810860918991511734054659367551504133598695506983577356631561243254435034401902783410022062949270627324868572450206031890981487914572362831266317540898580949258417005023301826725877414248283796346856047817061897861536033977875194201041106619777707383794760234840045086816558596954386616464112910042597878026905407944068706682526489619878968769691263773995868348999587607990394435956230184391367550405550443857019550514925868263682759234486240384365040070062013869384733908149436801427200556896456698059251538305837714720648120460604772377802834897075567298096098758766898830875031337498782677844059667008279950734389535979532840837643023883082288884208181949126545516295091313830752756674277990237743259138907126859649538076702584104029498843441352639577191361052500174481948833075387594996214730821720595034308168776196275378239316665338409870450108128954497121949367827860447046452654156868355926601916887792491232051892319677480635368168629810598664237723245231283788748730102049269375770733737767759666963026411709868473140204302988943691273125763005519620308297521214835707197775234692187441180670362733812275119725971924146123719314450342709253688181254811896619016341279718262878071127162146913770584624934101
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 98 of the certificate chain of a 3,159-digit prime (305 intermediate primes).

Certified number3,159-digit prime
Certificatedownload
Certificate chainshow step 98 of 305

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009130372909 --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":1100000009130372909},"decimal":true,"detail":2}}'