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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 #1100000008859756765 2,198 digits created 2026-06-10

Value

41507290530862384361573453110640478553917701347183635253518740827512448411137475723270278321116205918318614083594411517234081007008009957450917961207968505319822362305668804778627602971554006815874077590025257167139164953364221836449401902774253588971573272559789001608736859598020636545115668218933762699953065093435841864076045373636809432178197978027517611902181068115401549602133827739984897053926546080290293903578676930761262683720132341575818970309152431899517647761748798881816757465925147732278003619429648539882776335871178986594906444454930991315667304572399145023065825129924179996505649985587012964803031190431876868593349784736560935886142703636446486969246846330236367286293833994712306951467138948677495285632213995918063050064341057673052676493533218013566169236440400941028234081624550102006724333090334753357208130028303601887064841994211757755505816609650527799269476837354943873977975213943484733402519404507524827791795527224580823675916417840790767568808634447450837694656687256968778518711178253589652524264268127822840756598297736159417527879740829272187257064432612870708878677842761236875872816790709086529882632691851948896024754311981064056538079720053611292175361738055285062151189089053296992732556838207695150570609970106645068256172621820057152418269295509639775802997327880500199131566129760656629715315618212822662981454362813831856315461477602449927417339372762611723516719166204872909119801655696929035876777406209120717781710799399977752653067011842183885530346958974175853159776252379784376873379996695173351604278692141644778185238361782391564937427729640526174290707089103301886968426596191646527680733469234913279320662063525702534936808893117836576020638876602848271649774455460768056078568771966405252100909097623528279137851943377959266984936006619756429785844415286015448311150068421031300636138566763430458783219279384656596696137256084058267668824758381502888282831746181541180067827041999922052113084795114045796406519597122644787779248645383382669444719611100095750275120532938978171804002387026429304303273556522588956730487637015563837739534154611914094935763417330915725765698388136875859810253806174565242285536885588081811632134029393914824271
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 3,239-digit prime (226 intermediate primes).

Certified number3,239-digit prime
Certificatedownload
Certificate chainshow step 72 of 226

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008859756765 --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":1100000008859756765},"decimal":true,"detail":2}}'