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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 #1100000008675223947 1,557 digits created 2026-03-09

Value

448595468090293364881282636601553338637881131678759239685024229503147403869436831019028222970496423082484009251195370197574092735051159287060704606991408217177050599773457100873358992885511664480341141170277150594410420821688243205945497865575576231615309011890462087160167653747239738616584311066531337862343328610869858872547059772221108714783575823567743540904577360179441079794760685958078937169198702418883583249904540023417955569743213975571330353011553393030414617145686143328317509359901429395476645342657169333754112269372010334643939918037407175595743293116186051066101712605289727470465614571317463481762177400424265269468389157748074616002837458424550919237512970363828338838764277338125558455206627209472631423368621039428043224802172952572838251461369822456330140094567873983339128837728396407143596448814115804152551562415188859540713283326723495637257897798252282778732368505183695762906191475855384127122983706376533790616488391472515885635407355026220968473284627694325494979608715094570365061741586526162728714464814124011360260425988631756613160312876514407038879029782673646868336354624169843746844487875698995429051721418462722358955005854357874446139320762841195479125722084588393468170146368723616802452770303741452972669286931479974532465236893812442508670122045753080934062250944536392376257038345904894150995455948545658173166497537230229723788040331443172241569866948159240836646355602749229296290886389282074871256614387054614411960642024592598856923757555494070444887465097782430849087281595803341483557532247750930538805402151
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 98 of the certificate chain of a 2,805-digit prime (214 intermediate primes).

Certified number2,805-digit prime
Certificatedownload
Certificate chainshow step 98 of 214

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008675223947 --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":1100000008675223947},"decimal":true,"detail":2}}'