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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 #1100000009063327686 1,989 digits created 2026-08-09

Value

611455887777765308561579647461073067087108703395265789270748949747191006965525280697621980132844763733656994781982894759077573582140602079035294582910441697913647858907696115301677456772805794166366271634220711768660407674450082801109407672829600425017641926105497666936418119952871702115576192426985482392231450017597176748921293270339511204846975082580651474981553260636987475770536579930812195540477045516900747026712070500530158888277947605663395851877584547225662213560987397707881983943267938312051535458926802612984707779727768002821440158198897769563096757886551498225532510050087007907070638603935325616991262045031755288538624406384795360725612658587341337508739765725486130877514321196050441294142444827177730263316001651239026157408632464231805818744436179443767289574863876214459700109331048994025172740889493077613965554207221923132311614631160948619450584043517641248665077351114539198068393124003858291088742359359330133489012304045882885950735201211039128884942466234967234233093151498489984023566219873178346804844732584513221876476023099686463817329247271716099199584768931998409389002134154033032183499953204739068560208355302645739932970325299698470341362093575339634962642028936200242239356401998114748899278070037791712859190218447819548652065898015365684856726013208728699018084312564755378553813864809745973844495080465735937752624474029745896814230608825442869349670187586052493355777544887713653352207559390169863079376015812391646606629978151174517283711629131743770383554463181692224934384383185551650827622251195437374578840222418818845783396099211666439853989174439752110840038081880214032929957771303784051572033424590285440197267733076131374653785421122405843308860865019075762444753380240212267628809847411154785191902328664260174583636628189545267063480177985678072252273195062864050394284977699729519371310864171312573972279137540759037169925170004993516486660379825529147627864296201376897774149013208084910547136730197154278787754414357776440414632371
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 44 of the certificate chain of a 2,570-digit prime (192 intermediate primes).

Certified number2,570-digit prime
Certificatedownload
Certificate chainshow step 44 of 192

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009063327686 --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":1100000009063327686},"decimal":true,"detail":2}}'