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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 #1100000009057951338 1,251 digits created 2026-08-08

Value

142889579050571702372619834905715509048997657040003545008200504184761385179218831989355123142420341983762889376100869879349808986618332832557741379478474696846606145020499693624681615561688238430810898022170488631886321533648029914105714856558641549684012539816755987439610591465906148921304859763460299128293282451084719447498535327065151963641674022779514688421494528457631440434584192676859329653084699932558868839823455934802591780671637487382071307145960679483150804044574693793058675446743317611487771259598909757133984637289612295431373255447365396973812713743386814483827841650289691676656258349446022936443723077531589841779990987946523128185396219007175621041711032190861207719626757618275734726269089853203029842111553671176285098313649187247478791314863778064815857574679697481694686283052206832049096947917204530268486119492025245198101657315039850076747178005588326945886518726948955490649724124881889211124729906835219329281915826486095217410813616539203027306429306179828065266756753957773532848831265626253061831586621332324272856808671814588669941972645933972096399516309631420331396952881175731811827768348841663594431998361050035564237637865182176422099749435621038249799397713377246171716323042780753214494167275787524795117883323
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 83 of the certificate chain of a 2,254-digit prime (178 intermediate primes).

Certified number2,254-digit prime
Certificatedownload
Certificate chainshow step 83 of 178

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057951338 --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":1100000009057951338},"decimal":true,"detail":2}}'