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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 #1100000009058252739 2,280 digits created 2026-08-09

Value

639406129089194035803885243007963946561235789599559292680274103346124030638570543255203663219544433056960138114175561947288828200405255427073408143332764502270377662069242286260627454567037967852288618046157445610052723022167030800570717022094775460453700563745425329550649328126630943772516293621565551997512415384425809875168318377992933442712965016555713969591580027018142815693542024954508901971117547685928896504662022666195353134006241876669120540957528424677779348068265421896768961247509944519766508845774210059135098986497995560524978533927919908689580402558259438023739000068560089789431152135128808404525067853602608609042134064901224381201946711688506586794071835616377591639622554726058310088422543626792766619359645754331931174162114813660317130810610749945021043559405488184121147476669027034970828613968118134873564264429502841427010807183979050421976512109127835228456765036156085891230338840777471082347750247656549007435092736806922880156721494680455780170490553285665128722462006139114076054867717615385176879523510447527858773628041646665395247871916218940174209579021813475880084469210213495118372451067607703445807512466365953965182171270244971931212777975854023733872384181929453268237796725224481470413534251538031178089291805665812883875540268157756449851058587395971075867927623449659752543530587480751887100161139826667360067181360448719924545205028372102609431178746537831668952664107655197063926873418079985476636274322586697027704574224845633394503976140010382188663166294964585275947425127614735392610791610259240777581698977437543114724298790943375000239013070769210987842483643064395578712040650211632565145078058824837673038238614122362942875164209864501573432414357612910270969900756167381370321262186319965226740754731597352435333762282981071609278793309874180119353262383945563253947222171959134551184929027851585595483330494784217940562577783877821254866572487231260332939659241269594291917811534475226395520939885673521396598667516296111337102186600529246941283082890569245141468676925825512208080548873245937784383232627798056283940016652665345661852399470673831238761902309603700485254462152420721135837122896347795104975018491124762648380759468037520608550753303766217730132180938877525218905369338518798119023103673457520957785175003737
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 6 of the certificate chain of a 2,362-digit prime (175 intermediate primes).

Certified number2,362-digit prime
Certificatedownload
Certificate chainshow step 6 of 175

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058252739 --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":1100000009058252739},"decimal":true,"detail":2}}'